According to MLB Network's Anthony DiComo, a source has said the New York Mets have given first baseman Pete Alonso a raise, and it's a record for a second-year player.
The Mets offered Alonso $652,521 for the 2020 season, which, according to Spotrac is a 16% raise over the $555,000 he made as a rookie in 2019.
The Mets control Alonso for the next five years (Free Agent in 2025), but he will not be arbitration-eligible until he has played for three years (2022). As DiComo noted, players generally have little salary negotiation leverage until they are arbitration eligible. The Mets have not discussed an extension with Alonso, but he's not worried.
For the Mets to make this happen, it’s incredible. I truly care about my teammates, my peers, the people I work with every day. And I care about the fans. I care about the city. So to be rewarded is fantastic, because for me, I give blood, sweat and tears to this organization. I’m willing to do whatever it takes to win.
I wouldn't be worried either if I belted 53 homers in my rookie season (another record for Alonso). Pete was also the Homerun Derby Champion in 2019 and his 23 homers in the final round broke the record set by Giancarlo Stanton in 2016.
Pete's 2019 stats are amazing for any rookie. According to Baseball Reference, Alonso hit a slash line of .260/.358/.583 with a .941 OPS. In addition to those 53 homers, he also hit 30 doubles and drove in 120 runs! Those are the kind of numbers that make any player deserving of a raise, and you have to applaud the Mets for realizing what they have in Alonso.
Per Fangraphs, both ZIPS and Steamer, which are conservative projections, show Pete regressing a little, but only a little in 2020. As a second-year player with some major league experience under his belt, I wouldn't be surprised if the 25-year old, who made the All-Star team as a rookie, was ranked 7th in MVP voting, and Rookie of the Year does more than expected in 2020.