Ted Lilly (flu) is scheduled to throw a bullpen session Tuesday.
Clay Buchholz has been scratched from his start Monday against the Phillies.
Bartolo Colon tossed seven scoreless innings Sunday in the A's 6-2 defeat of the Astros.
Jim Johnson had another meltdown Sunday, coughing up a three-run lead in a loss to the Blue Jays.
Chris Perez left Sunday's game against the Red Sox with right shoulder discomfort.
Nationals placed LHP Ross Detwiler on the 15-day disabled list, retroactive to May 16, with an oblique injury.
Alex Cobb held the Yankees to two earned runs over 8 1/3 innings Sunday in the Rays' 8-3 win.
Stephen Strasburg threw eight innings of one-run ball Sunday in the Nationals' 6-1 defeat of the Phillies.
Carlos Beltran is not playing Sunday due to left shoulder soreness.
Santiago Casilla will undergo surgery this week to have a cyst removed from his right knee.
Angel Pagan is not in Sunday's lineup due to a mild hamstring strain.
Ian Kennedy has been scratched from Monday's start due to a cut on his right index finger.