Velasquez left his start Thursday after developing a blister on his right middle finger, Corey Seidman of CSN Philadelphia reports.
Velasquez was allowed to finish the fifth inning after being examined by the Phillies' training staff, but did not return to the mound in the sixth inning. He was likely done anyway due to an elevated pitch count. He said he expects to be able to make his next start Tuesday against the Dodgers.