When the 2017 season ended, Cubs left fielder Kyle Schwarber looked in the mirror and didn't like what he saw.
He was stocky, slower than he wanted to be and he had just finished a very difficult season that saw him spend time back in the minor leagues at Triple-A after he struggled mightily through the first three months of the season.
Schwarber still put up solid power numbers despite his overall struggles. He slammed 30 home runs, putting him among the Top 15 hitters in the National League and among the Top 35 in all of baseball.