Tom Brady spoke about the departure of Wes Welker on Thursday. 

Welker left the New England Patriots, who replaced him by signing Danny Amendola to a five-year, $31 million contract.

"That's what happens. This is a, like I said, it's a very tough, competitive business, and nobody appreciated Wes more than I did and what he was able to accomplish for our team,” Brady told WEEI radio station in Boston. “He's moved on; he's in a good situation with another great team and a great quarterback. We always kind of kept in touch, we always will. He's one of my best friends." 

The Patriots signed Brady to an extension this offseason that runs until he's 40, which is without precedent for the franchise. 

"Of course I have feelings, but those feelings are very personal to me," Brady said about Welker. "I used to get caught up in anger and disappointment, but I don't make the decisions. These things aren't up to me. At some point you've got to realize the things that are out of your control, you've just got to let go, focus on my job and what I need to do. The game moves on, the team moves on, there's only so long you can dwell on the past, and at some point you've got to move forward.”