If Red Sox starter Clay Buchholz can't make his next start, the team will consider using either Rubby De La Rosa or Allen Webster for a spot start, according to CSNNE.com. 

De La Rosa has been rehabbing in the minors, and hasn't started in the majors since 2011. He was part of the team's mega-deal with the Dodgers last year. He has a 2.89 ERA in 43 2/3 innings in Triple-A.

Webster has started two games with the team this year. He has an 11.74 ERA in 7 2/3 innings in the majors. He's been much better in Triple-A, posting a 2.98 ERA in 51 1/3 innings.