Red Sox left-hander Payton Tolle took the Fenway Park mound on Sunday afternoon with a heavy heart. Pitching two years and a day after his mother, Jina, died following a nearly eight-year battle with colon cancer, the 23-year-old Tolle wore his pant legs near his knees showing his pink socks on Mother’s Day. When his start was rained out Saturday, Tolle had a lot more time to think about what pitching the next day would be like.