Watkins was recalled from Triple-A Norfolk on Friday.
Watkins was scratched from his scheduled start at Norfolk on Thursday and will ultimately rejoin the major-league club after Tyler Wells (shoulder) was placed on the 15-day injured list. Watkins will pitch out of the bullpen while Mike Baumann takes Wells' spot in the rotation Saturday, per Roch Kubatko of MASNSports.com. Over 20 appearances (19 starts) for the Orioles this year, Watkins has posted a 4.37 ERA and 1.34 WHIP in 94.2 innings.