Sappelt was the primary starting center fielder against left-handed pitchers but hit only .178 in 20 games and 45 at-bats. Loe had a 5.40 ERA in seven games with the Cubs after being picked up off waivers.
Sweeney was also picked up off waivers after being cut by the Boston Red Sox at the end of spring training. He was hitting .337 for Triple-A Iowa. This is Dolis' second stint with the Cubs this season.