A Chicago Cubs trade idea sends two top-ten prospects to the Arizona Diamondbacks for starting pitcher Zac Gallen, following the season-ending injury to Corbin Burnes.

Arizona Diamondbacks pitcher Corbin Burnes is set to undergo Tommy John surgery, ending his season early in the first year of a six-year, $210 million contract.

Arizona Diamondbacks starter Corbin Burnes will undergo Tommy John surgery, D-backs manager Torey Lovullo said. Burnes is in the first year of a six-year, $210 million contract.