Washington Nationals relief pitchers Sean Doolittle (elbow) and Tanner Rainey (elbow) will return to Florida to continue their respective elbow rehabs after the 2023 regular season begins. Doolittle is a little further along than Rainey, who is still recovering from Tommy John surgery. "He's building up strength, he's throwing," manager Dave Martinez said of Doolittle. "Actually he's throwing the ball really well. So hopefully we get him back soon. He's gonna go back and I think pretty soon ...