Catchers Sandy Leon and Christian Vazquez stood out behind the plate, too, with pink catching gear from head to toe. This is all part of MLB's effort to fight cancer. Proceeds from all gear sold will go to Susan G. Komen and Stand Up 2 Cancer.
"It's huge to be able to go out and honor my mom and my wife on Mother's Day," said first baseman Mitch Moreland, "and get to represent them by using the pink stuff. It kind of brings a little bit more of a meaning to the game than just getting to play ball."
Moreland was one of many Red Sox players opting for a pink bat on Sunday, and he added a layer of pink grip tape, too.
"She was there supporting me every day. Now, on top of it, my wife is there supporting every day, too, and being a mom to our children as well. To be able to come out and show my appreciation to them today by doing this is awesome."
Keegan Matheson is a contributor to MLB.com based in Toronto.