The Twins transferred Ryan (shoulder) to the 60-day injured list Tuesday.
Ryan won't be eligible for activation until Oct. 9, ending his regular season. The right-hander is dealing with a Grade 2 teres major strain and could potentially be available if the Twins make the postseason, but a previous timeline of "weeks to months" doesn't provide much clarity. The transaction, along with Trevor Richards' DFA, opens up spots for Michael Tonkin and Caleb Boushley on the 40-man and 26-man rosters, respectively.