Ahead of Wednesday's important matchup against the Chicago Cubs, the Washington Nationals made a notable roster move. As announced by the team, they revealed that right-handed pitcher Miles Mikolas was designated for assignment. That was the corresponding action following the organization's decision to promote left-handed pitcher Jackson Kent to The Show for his major league debut. Nationals Preparing for Future by Parting Ways With Miles MikolasWashington Nationals pitcher Miles Mikolas | IMAGN IMAGES via Reuters ConnectBecause of his inflated ERA, the writing was on the wall that this move was going to be made at some point. The Nationals weren't expecting to get a high level of performance from Mikolas when they signed him.