BOSTON -- A half hour before Monday's scheduled first pitch, the tarp had been removed from the field and Boston Red Sox groundskeeper Dave Mellor was busy supervising his crew in preparing the diamond for the Patriots Day matinee against the Baltimore Orioles.

No telling when the heavy rains arrive -- sometime after midday is the popular forecast -- but here are the starting lineups for both teams:

ORIOLES

Alejandro de Aza, LF

Jimmy Paredes, DH

Adam Jones, CF

Chris Davis, 1B

Travis Snider, RF

Manny Machado, 3B

Ryan Flaherty, 2B

Ryan Lavarnway, C

Everth Cabrera, SS

Wei-Yin Chen, LHP

RED SOX

Mookie Betts, CF

Dustin Pedroia, 2B

David Ortiz, DH

Hanley Ramirez, LF

Mike Napoli, 1B

Shane Victorino, RF

Brock Holt, 3B

Xander Bogaerts, SS

Ryan Hanigan, C

Justin Masterson, RHP

Pablo Sandoval (0 for 13 vs. left-handers) is not in the lineup. Manager John Farrell is calling it a day off.