A day after Patrick Corbin tossed a one-hit, complete game shutout for the Arizona Diamondbacks, the team received grim news about another staple in their rotation. Pitcher Taijuan Walker, who exited a start last week with elbow discomfort, will need Tommy John Surgery to repair UCL damage in his pitching elbow.

He is likely to miss the rest of this season and the first half of the 2019 season, making this a serious long-term blow for Arizona.