Choi is starting at first base and batting seventh for Wednesday's matinee game against the Blue Jays.
Choi will make his first major-league start since 2016 after having his contract selected by the Yankees on Tuesday. The 26-year-old is the latest option at first base in place of the ailing Tyler Austin (hamstring) and Matt Holliday (illness), though his audition may be a temporary one. Choi hit just .170/.271/.339 over 54 games with the Angels last season, but has shown flashes of improvement in Triple-A this year, batting .289 with 43 RBI.