Lopez was recalled from Triple-A Buffalo on Friday, Keegan Matheson of MLB.com reports.
The 23-year-old hit .225 with a homer, 14 runs, 14 RBI and four stolen bases over 35 games in Buffalo to begin the season, and he'll join the major-league club to provide additional infield depth while Bo Bichette (foot) is banged up. Lopez appeared in just one game for the Blue Jays last year.