Hull City defender Jack Hobbs is facing up to three weeks on the sidelines after suffering an ankle injury during Tuesday's 1-0 defeat to Watford.
The 24-year-old, who has been a regular in the side since returning to action in December, had to be replaced in the 77th minute of the KC Stadium clash.
Scans have revealed the centre-back suffered ankle ligament damage and he will be absent for between two and three weeks, according to Rob Price, the club's head of medical services.
The Tigers have also revealed on their website that midfielder Sone Aluko is making progress following surgery on his plantaris tendon, but is still not ready to return.
Striker Matty Fryatt is now back in full training and closing on a first-team return, while defender Paul McShane is expected to step up his rehab over the weekend, although he will not play again this season due to an ankle injury.
Barton, on loan from QPR, was on Wednesday ordered by OM officials to cease his attack on Paris Saint-Germain defender Thiago Silva, which was also condemned by PSG and a prominent anti-homophobia group based in the French capital.
Barton wrote a series of Twitter messages on Tuesday evening and on Wednesday morning, in which he went as far as questioning whether Silva was "pre-op or post-op".
But Baup, speaking at his pre-match press conference ahead of Friday's home Ligue 1 game against Bordeaux, said: "What is important to me is the communication from the club.
"I am the coach of OM and I have to intervene (only) on larger matters. The communication of individual players is their own responsibility.
"I have a boss and a direction. Barton holds an important place in the team and I make decisions in the game - for example, that he (Barton) did not start against Nice (last weekend). That is my responsibility. Beyond that, it does not concern me."
Barton's outburst apparently stemmed from comments made by Silva ahead of PSG's Champions League quarter-final against Barcelona, when there was an oblique reference to Barton. Silva spoke of an English Marseille player whose name he claimed to have forgotten that had taken to criticising big-name players including David Beckham because nobody was talking about him.
On Wednesday night, Marseille said in a statement that the club and Barton were keen to apologise for the midfielder's "inappropriate comments", adding: "The management asked Joey Barton to put an end to the attack on PSG's Brazilian defender. The Marseille midfielder pledged to immediately cease the posting of anything derogatory about Thiago Silva."
Barton made his initial "overweight ladyboy" remark following PSG's 2-2 draw with Barcelona, and yesterday morning added: "2 questions for Thiago Silva. Firstly, Why are YOU talking about ME, in your press conference before PSG v Barca? Very strange.
"Secondly, Are you Pre-Op or Post-Op? #transsexual #thiagosaladyboy.
"Baffles me, which way he's going. Is he a man changing to a woman or a woman changing to a man? Can't work it out."
The anti-homophobia group Paris Foot Gay said they had discussed Barton's comments with French league chiefs, and that they had been told he would be reported to the French Football Federation's national ethical council.
Reports from France on Wednesday night claimed that the FFF would not be taking the issue any further, after reviewing Barton's comments.
Paris Foot Gay said that Barton's comments were "without doubt based on the stereotype linking Brazil to transsexualism".
In a statement on their website, they added: "Paris Foot Gay considers this type of remark to be vulgar, discriminatory and funny to nobody and it should not be tolerated in someone with such a profile. To be a football idol excuses nothing and should, on the contrary, make players responsible for the impact of their remarks on the public - youngsters especially."
Silva's club were quick to defend their player, as PSG expressed their unhappiness with Barton's "unacceptable remarks".
The Ligue 1 leaders warned they could take action, which they did not specify, against the former England international.
A statement from PSG announced: "In the last few hours, on social networks, unacceptable remarks have been made by Marseille player Joey Barton against Paris Saint-Germain player Thiago Silva.
"These attacks are serious and go beyond mere verbal jousting. The directors of the club, the players and the coaching staff are supportive of Thiago Silva and cannot accept such statements.
"They reaffirm their unwavering commitment to the values of respect that should govern our sport.
"Thiago Silva and Paris Saint-Germain reserve the right to take any action they deem necessary."
On Thursday, France's sports daily L'Equipe has a picture of Barton dominating its front page, with the caption "Is that British humour?".
Barton left QPR to make his loan move last summer after a series of controversies blighted his career at Loftus Road, culminating in his spree of violent behaviour on the pitch at the Etihad Stadium on the final day of last season, in QPR's clash with Manchester City, that resulted in a 12-game suspension.
The midfielder was stretchered off after his knee gave way during Easter Monday's 3-2 victory over Oxford.
Morris, 23, subsequently went to hospital where his dislocated kneecap was confirmed.
The Welshman is now back in Cardiff receiving treatment and awaiting a further MRI scan. No date for his scheduled comeback has yet been set.
The Shots, currently second from bottom in League Two but just two two points from safety, are not in action this weekend due to scheduled opponents Southend taking part in the Johnstone's Paint Trophy final at Wembley.
The former Falkirk player missed last week's defeat 2-0 to Aberdeen with what the Gorgie boss described as an "ongoing" problem.
And with a free weekend following the visit of the Staggies - when the William Hill Scottish Cup semi-finals take place - Locke is of a mind to allow Barr more time to shake off the injury.
"The squad is pretty much the same as last week," he said. "All our injuries are long-term so it's not as if we've got the satisfaction of getting one or two back.
"All the boys are out until the end of the season and it looks like Darren Barr will be struggling with an ongoing ankle problem.
"Looking at it sensibly, we've got no game next weekend so if he misses this match then he's given himself three weeks to get it right and that's the right thing to do with five important games after the split."
The Latics head to Loftus Road on Sunday for a true relegation six-pointer at the foot of the Barclays Premier League.
Whilst Wigan are only out of the bottom three on goal difference to Aston Villa, Harry Redknapp's Rangers are currently staring the drop in the face as they are seven points adrift of safety.
But after back-to-back 3-2 defeats at Villa and Fulham for QPR, Martinez is refusing to be lulled into a false sense of security.
"People are talking about the results QPR have had and the points they have and I don't feel it gives a true representation," said Martinez.
"You look at the performances they have had since January, when they renewed the squad, and it's not a squad that deserves to be where it is in the table.
"I saw them against Fulham, and although they made big mistakes at the back that cost them goals, they created plenty of chances and are an extremely dangerous side.
"I feel they were very unfortunate not to get anything out of the last two games against Fulham and Aston Villa because, on balance, they were the better side.
"We're not going to become confused by their last two results. We know they are capable of winning games and we'll be well aware of what can happen."
Wigan head back on the road with an enviable record of having won six and drawn two of their last nine away games in all competitions.
Speaking to the Wigan Evening Post, Martinez added: "We can't afford to be worrying about QPR - all we can do is worry about ourselves.
"We don't have enough points on the board and we are in a relegation battle ourselves.
"We have played most of our best football away from home this season and we need to make sure we continue at that level."