Danny Duffy allowed four runs over 6 2/3 innings in Tuesday's loss to the Astros.
In his return to the rotation, Danny Duffy surrendered two runs -- one earned -- over 4 2/3 innings in a no-decision Wednesday against the Mariners.
Royals activated LHP Danny Duffy from the 15-day disabled list.
Danny Duffy will return from the disabled list to start for the Royals on Wednesday.
Danny Duffy (biceps) will begin a rehab assignment with Triple-A Omaha on Tuesday.
Danny Duffy (biceps) threw a successful side session on Saturday.
Danny Duffy (biceps) threw a simulated game Thursday.
Danny Duffy (biceps) will throw a simulated game on Thursday.
Danny Duffy (biceps) will throw a bullpen session on Friday.
Danny Duffy (biceps) played catch on Tuesday.
Royals placed LHP Danny Duffy on the 15-day disabled list with left biceps tendinitis.
Danny Duffy's (shoulder) next scheduled start has been pushed back from Saturday to Tuesday.
Royals manager Ned Yost indicated Sunday that Danny Duffy will need to show improvement in order to avoid being removed from the rotation.
Danny Duffy surrendered four earned runs over five innings Saturday in the Royals' loss to the Yankees.