Potential X-factor player for each MLB team for 2016

Brito impressed during spring training, and he's about to get more playing time than Arizona bargained for after star center fielder A.J. Pollock fractured his elbow at the end of spring. He's shown the ability to be a high batting average hitter with good speed in the minors, but it remains to be seen if he's ready for the big leagues.

Olivera was acquired from the Dodgers last season and will be shifted to the outfield. The Braves only have one big bat in their lineup, first baseman Freddie Freeman. Olivera's big contract and projection from Cuba say that he should be their second, but he's yet to show it.

Baltimore has incredible power up and down the lineup, but the starting rotation is the clear weak spot. Gausman is a former top prospect who needs to make a jump for the O's to compete in the AL East. He's starting off on the wrong foot, beginning his season on the DL due to a shoulder injury.

Holt has been a utilityman extraordinaire over the last two years in Boston, but he beat out high-priced outfielder Rusney Castillo for the left field job this spring. While Holt has hit .277 in his career, he hasn't shown much offense otherwise. Boston needs more from him to keep its lineup moving with the top teams in the division.

Baez missed most of last season and is starting 2016 with an injury. The Cubs still love his power upside and plan on using him all over the field as a utilityman. He could make the offense bulletproof when he returns.

Latos settled for a one-year deal with the White Sox but was considered a relative ace before last season with a career 3.34 ERA at that time. The White Sox feel comfortable with their top three starters and probably need Latos to rebound in order to win the AL Central.

The Reds are high on Peraza after acquiring him for Todd Frazier and would like to give him regular at-bats soon. Second baseman Brandon Phillips has a no-trade clause, but Billy Hamilton's lack of hitting as the center fielder could open up a spot for the speedy Peraza.

Anderson saw a huge uptick in velocity this spring, allowing him to win the No. 4 starter job for Cleveland. He showed great flashes last year with a 3.05 ERA in 15 starts and could emerge as the team's fourth ace if he can build on last year's performance.

The Rockies have relatively reliable starters in Jorge De La Rosa and Chad Bettis, but the rest of their rotation is a major question mark. Chatwood showed an excellent arm before missing all of last year to Tommy John surgery and could have the ground ball rate to succeed at Coors Field.

Sanchez has struggled through injuries over the last two seasons and had more arm issues in spring training. The Tigers still haven't overcome the loss of Max Scherzer in 2015 and must get more innings out of Sanchez to compete this year.

McCullers starts the year on the DL with a minor shoulder issue. Houston hopes he will return in late April, and he's shown the upside to be as good as any pitcher in the rotation. The Astros could take another step forward if he returns when planned.

Johnny Cueto was a difference-maker during the stretch run for Kansas City in 2015, and Ventura was close behind with his massive improvement. He had a 3.56 ERA and more than one strikeout per inning after the break. KC will need him to continue if it wants to reach a third World Series in a row.

The Angels' rotation looks shaky behind Garrett Richards, with C.J. Wilson out with a shoulder injury and Jered Weaver showing less velocity this spring. Heaney has a chance to step up as the team's No. 2 starter after posting a 3.49 ERA in 18 starts last season.

Puig had a poor and injury-plagued 2015 season, but the Dodgers resisted selling low on him this offseason. There's no doubt he still has immense talent, hitting .305 and averaging 18 homers in his first two seasons. The team needs him to step up after all the injuries it had during spring training.

Marlins ownership reportedly wanted to move Ozuna this offseason, while the coaching staff resisted. Miami lacked offense last season, but Ozuna could help with a rebound season after hitting only 10 homers last year.

Santana showed huge power in the minors, but the Astros questioned whether it would translate to the majors before trading him for Carlos Gomez last year. Milwaukee is hopeful after he hit eight homers in 160 at-bats last season and opened the year hitting Santana leadoff.

Buxton has been an elite prospect for several years but has battled injuries and ineffective play recently. He was overmatched in the majors last season and didn't look much better this spring. Still, the Twins will be patient, hitting him at the bottom of the order to start the season.

The Mets have the talent to get back to the World Series if their lineup performs as well as it looks on paper. They made some nice offensive additions this offseason but are still relying on young Michael Conforto to hit like he's capable. He made a great contribution late in 2015, hitting .270-9-26 in only 174 at-bats.

The Yankees' lineup is aging quickly, and there's no better example than Ellsbury. He was terrible in 2015, hitting only .257-7-33 in 111 games. Signed through 2020, the Yankees desperately need him to rebound.

Hahn missed much of 2015 due to elbow soreness but returned healthy this spring. He still had trouble with his command and was demoted. An injury to Felix Doubront has forced Hahn back into the rotation, and Oakland desperately needs him to pitch well in order to keep pace in the AL.

Hellickson was Philadelphia's Opening Day starter and the veteran of a very young staff. After looking like a potential ace in his first three seasons, Hellickson hasn't been the same. Philadelphia hopes he re-emerges, if for no other reason than his trade value.

Nicasio wasn't given a realistic shot of winning a rotation spot this spring, but 15 innings without giving up a run changed the team's mind. If he can carry his performance into the season, Pittsburgh certainly looks like it can keep up with the Cubs and Cardinals again.

Myers has struggled through wrist issues over the last two seasons, but he looked like a star in the making in 2013. San Diego's lineup lacks much pop beyond Matt Kemp and really needs an offensive contribution from Myers.

San Francisco is a popular pick for another World Series run. The Giants have plenty of ability up and down their lineup but lack star power behind Buster Posey. Belt showed that potential in the minors but has had some issues staying healthy over the last two seasons.

Walker has the stuff to be an ace, but he hasn't been able to keep the ball in the park to this point. Seattle has made numerous moves this offseason, but it's relying on Walker to take another step forward.

Garcia was the Cardinals' X-factor in 2015, giving them a surprise contribution after shoulder surgery and effectively replacing Adam Wainwright. With key injuries to their offense, they'll rely on Garcia again to at least make a similar contribution to what we saw last year with 20 starts and a 2.43 ERA.

Tampa Bay improved its offense by trading Jake McGee for Dickerson in the offseason. The lineup was an issue in 2015, but Dickerson has shown the power to be a difference-maker with 34 homers in 660 at-bats over the last two seasons.

Darvish could return from Tommy John surgery as early as mid-May. Pairing him with Cole Hamels makes the Rangers a scary team in the American League, if he can return on time.

Sanchez won the fifth starter job with a spectacular spring. Toronto needs him to emerge after losing David Price and Mark Buehrle in the offseason, and he shows the pure stuff to be an ace.

Rendon finished fifth in NL MVP voting in 2014 but struggled to stay on the field last season. He was one of many disappointments that prevented the Nationals from making the playoffs, and the team is relying on him to help support Bryce Harper in the lineup during 2016.