There's an inherent risk involved when trading for a rental starting pitcher. There is an inherent risk involved when trading for a rental starting pitcher who needs fixing. There is an inherent risk involved when trading for a rental starting pitcher who has an injury history. There is an inherent risk involved when trading for a rental starting pitcher who has had a considerable dip in velocity over his last three starts. If you can't tell, the Chicago Cubs took a major risk when they traded for Michael Soroka, and it backfired immediately.
Soroka made his Cubs debut on Monday night and only lasted two innings before leaving the game with shoulder discomfort.