David Wright agreed to the richest contract in Mets history, Tommy Hanson was traded to the Angels and Brian Wilson became a free agent on a busy day in baseball when dozens of players were dumped by their teams.

Houston scooped up Philip Humber, hoping he’s a perfect fit, and Mariano Rivera returned for another season with the Yankees.

Jair Jurrjens, Mark Reynolds, Mike Pelfrey and Geovany Soto were among the most notable names who became free agents Saturday after their former clubs declined to tender them contracts for next season.

Teams had until midnight EST on Friday to make 2013 offers to unsigned players on 40-man rosters. Clubs can re-sign those players, but by letting them go free now they are permitted to cut their pay by more than 20 percent.

Wilson, the All-Star closer with the overgrown beard who missed nearly all of last season with an elbow injury, was among 40 non-tendered players. The World Series champion San Francisco Giants chose not to offer him a contract as he recovers from a second Tommy John surgery.

Wright and the Mets settled on a $138 million, eight-year deal, a person familiar with the negotiations told The Associated Press. The agreement replaces the All-Star third baseman’s $16 million salary for next season and includes $122 million in new money, the person said, speaking on condition of anonymity because the contract had not been finalized.

Atlanta shipped Hanson to the Los Angeles Angels for former closer Jordan Walden, clearing a spot in the Braves’ rotation for Julio Teheran, Randall Delgado or another young starter.

Hanson’s velocity decreased as he battled rotator cuff tendinitis in 2011 and a lower back strain in 2012. But the 26-year-old right-hander was 45-32 with a 3.61 ERA in 108 starts over four big league seasons with the Braves.

Walden had 32 saves in 2011, making the All-Star team as a rookie, but lost his closer’s role to Ernesto Frieri this year and finished 3-2 with a 3.46 ERA.