Washington Nationals outfielder Jayson Werth was convicted Friday of reckless driving and sentenced to 10 days in jail for driving his Porsche over 100 m.p.h. on the Capital Beltway in Virginia earlier this year.

Fairfax County General District Court Judge Penney Azcarate said a jail sentence was appropriate given the excessive speed.

"I-495 is not a racetrack," Azcarate said in imposing the sentence.

The former Phillies star briefly took the stand in his own defense. He conceded that he may have been going 90, but disputed that he ever broke 100. He immediately appealed his conviction to Fairfax County Circuit Court.

Werth sought unsuccessfully to have the case tossed out, questioning the reliability of the trooper's pacing of Werth and asking the judge to take into account that the speeding occurred at 9:30 a.m. on a Sunday morning, when traffic was light.

Werth, 35, has three seasons left on a $126 million, seven-year contract with the Nationals. He batted .292 last season with 16 home runs and 82 RBIs in 147 games.

During the trial, state trooper P.L. Green testified that on July 6, he followed Werth for about half a mile on the beltway at 105 m.p.h. before pulling him over. Green said he asked Werth what he was doing, and Werth said "he was pushing his luck."

Cash in. Kevin Cash is the new manager of the Tampa Bay Rays. The team announced the former Cleveland Indians bullpen coach as Joe Maddon's replacement. Cash, who turns 37 on Saturday, has no previous managerial experience. The former catcher, who appeared in 13 games with Tampa Bay in 2005, becomes the youngest active manager in the majors.

Yanks moves. The Yankees made their first big moves to reshape for 2015, acquiring a shortstop to replace Derek Jeter and a relief pitcher who could take over from David Robertson as closer. As part of a three-team trade, the Yankees obtained slick-fielding, light-hitting shortstop Didi Gregorius from Arizona and dealt right-hander Shane Greene to Detroit. A few hours later, they agreed to a $36 million, four-year contract with reliever Andrew Miller.

Kind of retiring. Former all-star pitcher Ryan Dempster is retiring with the Cubs and joining their front office. Dempster, who played 16 years in the majors, will serve as a special assistant to president of baseball operations Theo Epstein.