The Cubs recalled Triantos from Triple-A Iowa on Friday.
He's grabbing the roster spot vacated by Kevin Alcantara, who was optioned to Iowa. Triantos has slashed .306/.344/.440 with seven home runs, 18 stolen bases and a 20:44 BB:K this season and will be making his major-league debut when/if he gets into a game. The 23-year-old's versatility gives him multiple avenues to playing time, but everyday reps are unlikely.