A few days after free agency began, former Wildcat Richard Jefferson agreed to a deal with the Dallas Mavericks. Apparently he never officially signed the contract, and has had a change of heart. He'll now apparently be joining LeBron James and the reigning Eastern Conference champion Cleveland Cavaliers, according to ESPN's Marc Stein:
Another curveball in Mavs' offseason: Hearing that vet swingman Richard Jefferson, thought to be staying in Dallas, now signing with Cavs— Marc Stein (@ESPNSteinLine) July 21, 2015
DeAndre Jordan also backed away from a commitment with the Mavericks, and I'm assuming that Jefferson's actions are related.
Once the Mavericks lost out on Jordan, their chance of making a run in the Western Conference went out the window. Jefferson just turned 35 and likely wants to spend his last years in the league on a team that has a chance to win a title, hence his decision to sign with the Cavs instead.
Obviously it's way too early to know what Jefferson's role on the Cavs will be, but his shooting ability and veteran presence is something that any contending team could use.
Jefferson joins Bret Brielmaier in the "former Wildcat, and now a Cavalier" group. The latter is currently an assistant coach for the team.