Mario Williams hopes to be back on the field this Sunday, not that you may have realised his absence anyway in his blink-and-you’ll-miss-him-season thus far.

ESPN’s Chris Mortensen reported on Sunday his own earlier story that Buffalo was fined $20,000 for failing to disclose Williams’ injury earlier in the season despite the defensive end never missing a practice. The significance of Williams suiting up this Sunday is that the Bills face his former team, the Houston Texans, at Reliant Stadium.

According to John Wawrow of usnews.com,Williams had (what is believed to be arthroscopic) surgery last Tuesday in Alabama to “clean up” his left wrist and he already has better range of motion in the hand.

Williams signed a six-year, $100 million contract in March, with the team hoping his presence would be the final piece of the defensive line puzzle, allowing him to team up with Marcell Dareus, Kyle Williams, Chris Kelsay and Mark Anderson to wreak havoc among AFC East foes before tearing through the rest of the conference during the playoffs. That plan couldn’t have been further from being executed and they find themselves sitting third in their division behind a surging Miami Dolphins and the perennially potent New England Patriots.

Williams has 3.5 sacks on the season, second on the team, having set the Texans franchise record with 53 over six seasons before landing on injured reserve in Houston last season. He’ll have detailed knowledge of his former team’s schemes to pass on to his new coaches, but the Bills will need much more than that, not to mention unrivalled execution, if they’re to leave town with a .500 record.