Alex Coras Red Sox lineup Sunday has different leadoff hitter Triston Casas sits

BOSTON — Red Sox manager Alex Cora said he planned to mix and match at the leadoff spot to start the season. Eventually, someone might earn the full-time gig. Cora had Alex Verdugo leading off the first two games of the season against a righty starter. Boston will face left-handed starter Cole Irvin on Sunday and so Verdugo is going with Rob Refsnyder in the leadoff spot. Refsnyder has made 16 starts in the leadoff spot in his career. He has a .241/.301/.337/.638 line in that spot. Triston Casas will sit after starting the first two games at first base.…