Bills running back LeSean McCoy raised some eyebrows when he skipped the first day of the Bills’ offseason program. It’s still not clear why he wasn’t in the building, but his absence was not related to any kind of contract holdout, a source tells Mike Florio of PFT. 
This year, McCoy is slated to earn a base salary of $6MM plus nearly $3MM in prorated bonuses and workout incentives. However, his base salary is not guaranteed, so his absence from the team’s voluntary practice led to some speculation that he was pushing for a revised contract. McCoy might have been away from the team to celebrate his son’s fifth birthday or for some other reason, but he apparently wasn’t trying to drum up leverage for a new deal.
So far, new coach Sean McDermott has been publicly enthusiastic about working with Shady.
“LeSean is going to be with the Buffalo Bills moving forward,” McDermott said in early March. “He’s a great player. We worked together in Philadelphia and when you look at the skill set LeSean brings to the table, we’re excited to be working with him.”
McCoy is scheduled to be under contract with Buffalo through 2019.
should be noted that according to Shady’s instagram story, it was his son’s 5th birthday.
seems like a perfectly good reason
This story is vastly out of context. Shady put on several social media sites that it was his son’s birthday. Clearly takes priority over a voluntary workout for the Bills.