Guardians’ top prospect Gavin Williams has been experiencing pain in his right elbow since early March. After throwing three innings in a rehab start on Saturday, Williams felt discomfort in the back of his elbow, prompting the team to shut him down for seven days. The 21-year-old right-hander will receive a cortisone injection and will be on a no-throw program during this period. Williams was expected to compete for a spot in Cleveland’s opening day rotation but has been sidelined since spring training due to the elbow injury.