Blake Treinen received an extended ovation from his former home crowd when he was introduced at Nationals Park before the All-Star Game presented by Mastercard on Tuesday. He responded with a smile and a wave, soaking in his first appearance in the Midsummer Classic.
A few hours later, he showed Nationals fans what they were missing. Sean Doolittle, whom the A's sent along with Ryan Madson to the Nationals for Treinen in a trade last season, made the All-Star Game for the National League. But Treinen, who pitched for the Nationals from 2014-17, may end up making them regret the deal when it's all said and done.