The phrase "offseason acquisition" refers to the process of a sports team recruiting or obtaining new players or personnel during the period when the sport they play is not active or in season. Full definition
The Seahawks have attempted to utilize their big offseason acquisition more as a blocker, than as a receiver. (sportsinsights.com)
At Thursday's training session, the Five Stripes» expensive offseason acquisition... (prosoccerusa.com)
Their biggest offseason acquisition ended up being the real Ubaldo Jimenez, or at least the version that made people want to give him millions in the first place. (sbnation.com)