The Indianapolis Colts starting tight end Dwayne Allen suffered a hip injury in the season opener against the Oakland Raiders. Allen sat out week two's loss to the Miami Dolphins, and his return was undetermined until today.According to Colts team writer Kevin Bowen, Allen will have surgery on his hip and will miss the rest of the 2013 season.Pagano said Dwayne Allen will require season ending hip surgery.— Kevin Bowen (@KBowenColts) September 18, 2013Allen's loss is a tough blow for the Colts' offense. The former third-round pick had a breakout 2012 rookie season. He recorded 45 receptions for 521 yards and three touchdowns. Indianapolis was expecting big things from the second-year tight end this year, but it appears his role on the offense will have to wait until next season.Coach Pagano said the team believed the surgery would be better for Allen in the long term and that they'll be looking to second-year player Coby Fleener to step up at the position. Fleener didn't quite have the big rookie year Allen had, but the 2012 second round pick caught 21 balls for 281 yards and two touchdowns last season.Fleener's role on the team will expand with Allen out, if it hasn't already. He had a strong week two showing with 4 receptions for 69 yards and a touchdown against a tough Miami defense. Andrew Luck and the Colts offense will look to Fleener to be a reliable target in the passing game in week three when they face the San Francisco 49ers.Follow @TheNFLInjuryRpt Looking for fantasy football advice?