2. Mets outfielder Brandon Nimmo
This comes as no surprise, but there is plenty to be concerned about when it comes to Brandon Nimmo and injuries. The 28 year old has a lengthy injury history and is vital to the success of this team. He is expected to hit at the top of the lineup and get on base in front of the big bats in the lineup.
One of the biggest moves the Mets have made this offseason so far was signing Starling Marte to a four-year $78 million dollar deal. Marte is expected to play center field every day which could take a lot of pressure off of Nimmo. This past season Nimmo was the full-time center fielder so he was out there running a lot more than he would be if he was a corner outfielder. This season Nimmo will be a corner outfielder which might benefit his health and help him play better defense too.
Even with that being said, Nimmo has not proven at all that he can stay on the field. He's proven he can hit, he can run, he's improved defensively, he can get on base at an elite clip. Health is the one thing he has not proven. His career high in games came back in 2017 with 140. The 92 games he played this season were his second highest.
If Brandon Nimmo plays in 92 games or fewer this season the Mets will be in trouble. While the lineup is improved, it's not good enough yet in my opinion to be a contender, especially if Nimmo misses substantial time. The reason the Mets have not extended him I assume is due to his injury history and the risk of that contract blowing up in their faces.