ST. PETERSBURG, Fla. — Rule 5 pick Seth Rosin was dreading the chance of being returned to the Philadelphia organization last week and getting sent to the minors, a distinct possibility if he hadn’t made the Rangers’ Opening Day roster.But he claimed the last spot in the bullpen, and then turned in two scoreless outings against the Phillies. His two-inning effort Wednesday was good enough for his first big-league win as the Rangers scored three times in the ninth inning, winning 4-3 as Shin-Soo Choo drew a bases-loaded walk.“It’s been everything I’ve dreamed of and more,” Rosin said. “The bottom of the ninth of the last game of the series was the most fun I’ve ever had at a baseball game. Just hearing the crowd, and having that walk-off walk was so cool and so special.”The goal now remains the same. Rosin is the least experienced member of a pitching staff that remains in flux, and he must remain on the active roster the entire season or be offered back to the Phillies.“Just anyway I can help the team, I want to do that,” said Rosin, a two-time all-conference pitcher at Minnesota. “If that means pitching in those kinds of situations or just trying to eat innings or being a water boy, whatever. I’m just happy to be here. I want to keep pitching well and stay here all season.”Easy ChoiceThe right-handed-hitting Michael Choice will make his first start of the season Saturday as the Rays start left-handed ace David Price. Mitch Moreland, a lefty hitter, will sit for the first time.Manager Ron Washington wasn’t sure if Choice, the former Mansfield Timberview and UT-Arlington star, would be the Rangers’ designated hitter or play in the field to give an outfielder a day at DH.
Jeff Wilson, 817-390-7760 Twitter: @JeffWilson_FWST