Diamondbacks prospect Blake Walston's Las Vegas call-up

Arizona Diamondbacks pitching prospect Blake Walston was at the Blackjack table in the Red Rock Casino in Las Vegas Tuesday after Triple-A Reno faced the Las Vegas Aviators, a unique setting to receive the news of a lifetime. Aces manager Blake Lalli told Walston he was headed to the major leagues, and Arizona officially called the 6-foot-5 lefty up for the first time Wednesday. “We were in Vegas, and I was at the table and all my buddies just started swarming me,” Walston said.