What happened: The Chicago White Sox sent condolences to the family, friends and fans of Tommy John, a four-time All-Star pitcher who died at 83. John appeared in 237 games, including 219 starts, across seven seasons with Chicago from 1965 to 1971.

Why it matters: He represented the White Sox at the 1968 All-Star Game, one of his four career All-Star selections. John is the same pitcher whose name became attached to the elbow reconstruction surgery he later underwent with the Dodgers.

What to watch: MLB clubs John played for are expected to issue further tributes in the coming days.