Jordan Matthews said Tuesday on Sirius NFL Radio that "two really bad diagnoses" by the Philadelphia Eagles' medical staff caused him to join the Buffalo Bills in a trade last August with lingering knee and ankle damage that wasn't surgically repaired until December.

And that was in addition to two other ailments that he developed last season: an injured thumb on which he underwent surgery in October and a chest injury.

"I think the worst and most frustrating thing about the whole situation was, when I got to Buffalo, I was still dealing with the things that I had to get surgery on," said Matthews, who was part of a deal that sent cornerback Ronald Darby to the Eagles. "But I had two really bad diagnoses on the knee and the ankle, so going into the trade, I thought they were both things that were going to heal on their own. But once I got around Buffalo's doctors, they got me in touch with the right people and then I got really good feedback.

"We ended up finding out there were other things that I was dealing with, so the thumb was definitely upsetting, the chest was upsetting. But what's crazy was when they ended up doing my surgery on my knee, they actually told me that, 'Man, it's a good thing that you didn't play more games, you didn't practice more, because you needed to come here and get this procedure done as soon as possible.' So, if anything, it was a blessing in disguise. I don't regret any of the times that happen. I think it honestly has just made me a stronger person, it's going to make me a better player."

Matthews was limited to 10 games and proved to be a non-factor for a team that never found the help at receiver it needed after trading away Sammy Watkins. Matthews caught only 25 passes for 282 yards and a touchdown.