This story is part of Peak, The Athletic’s desk covering the mental side of sports. Sign up for Peak’s newsletter here.Eric Hosmer played 13 years in the MLB for four teams: the Kansas City Royals, San Diego Padres, Boston Red Sox and Chicago Cubs. These are the three best leaders he played with:Salvador Perez, Royals catcherHe was the ultimate lead-by-example guy.Salvador was leading at a young age, and it was because of the joy and the energy he played with.He not only came to the field and caught for 140 games every season, he came with such energy and joy. That joy and energy he played with was infectious, and it didn’t matter it was a random Tuesday in the middle of the season.He had the same intensity.When you see your catcher giving that kind of energy and not complaining, it just sets the tone. If it was 100 degrees and I’m playing first baseman, there was no way I could complain after seeing his energy.He was aware of everything on the field. He was all about protecting his guys, and everything was for the team.For the eight years we played together, he was consistent each and every day.Raul Ibanez, Royals outfielderHe came to the Royals during the 2014 season via trade. He was 42 years old at the time.Raul kept guys ready. Every fifth inning, he’d be like: Come on now, guys. We’ve gotta go down to the cage and get ready. This reliever pitched two days in a row so you’ll probably face this lefty.