The Chicago Cubs have bolstered their rotation, agreeing to a contract with left-hander Shōta Imanaga in their first major offseason roster move. A person familiar with the deal confirmed the agreement to The Associated Press on condition of anonymity because it was pending a physical. Terms of the contract are unknown. Chicago had been quiet since it hired Craig Counsell as manager in November, replacing David Ross in a surprise move. The Cubs were in position for an NL wild card last year before stumbling in September, fading to an 83-79 record after finishing under .500 in the previous two seasons.