Brad Boxberger got the start for the Rays against the Red Sox on Sunday and retired Mookie Betts, Dustin Pedroia and David Ortiz in the order.
Nate Karns was tagged for six runs in four innings by the Red Sox on Saturday.
Drew Smyly (shoulder) will throw another bullpen session Sunday.
Alex Colome (illness) threw a 40-pitch bullpen session Saturday.
Rays placed RHP Alex Colome on the 15-day disabled list, retroactive to March 27, with pneumonia.
Alex Cobb (forearm) has been cleared to begin playing catch on Saturday.
Mike Montgomery gave up three runs in an inning of work before Friday's game against the Orioles was cut short due to rain.
Brandon Guyer (ankle) returned to Grapefruit League action on Thursday.
Evan Longoria hit his second homer Thursday as part of the Rays' 6-5 win over the Yankees.
Ernesto Frieri struck out all four Yankees he faced during his appearance Thursday.
Rays reassigned RHPs Ronald Belisario, Andrew Bellatti, and Bryce Stowell, and INF Eugenio Velez to minor league camp.
Chris Archer has been named the Rays' Opening Day starter.
Matt Andriese shut out the Twins for five innings, striking out six, in the Rays' 2-1 win Wednesday.
Steven Souza went hitless in a third straight game Wednesday, dropping his average to .121.
Rays manager Kevin Cash confirmed Wednesday that Logan Forstyhe will get the majority of the playing time at second base to begin the season.