The San Francisco 49ers acquired offensive tackle Trent Williams in a trade with the Washington Redskins over the weekend, and 49ers cornerback Richard Sherman welcomed his new teammate (and former foe) to the Bay:

Both Sherman and 49ers owner Jed York are referring to an incident that occurred in January 2013, when Sherman (who was playing for the Seattle Seahawks at the time) and Williams got into a postgame scuffle after a playoff game:

That should make for an entertaining initial greeting between Sherman and Williams.

Williams spent the first nine seasons of his career with the Redskins after being selected fourth overall by Washington in the 2010 NFL Draft.

It didn't take long for Williams to establish himself as one of the best tackles in the league, as he made the Pro Bowl as soon as his third season and went on to make seven straight Pro Bowl appearances between 2012 and 2018.

However, last offseason, Williams' relationship with the Redskins soured after he underwent surgery to remove a cancerous growth from his head, a growth that Washington's medical staff brushed off as inconsequential back in 2013.

Due to his frustration over the way the Redskins handled the situation, Williams refused to participate in Washington's offseason program last spring and summer and demanded a trade. The Redskins placed him on the did-not-report list last July and attempted to trade him between training camp and the Week 8 deadline, but were unable to find a deal they liked.

Williams was then prepared to retake the field back in October, but he was shut down after he experienced pain when trying to put on his helmet as a result of post-surgical soreness.