Ruby Meylan was the biggest winner among Oklahoma State’s five softball players selected to the all- Big 12 team on Wednesday . Meylan and the Cowgirls are preparing to being action in the Big 12 softball tournament on Thursday at Devon Park in Oklahoma City. OSU, the No. 2 seed, will face the No. 7 seeded Utah Utes at 5 p.m. Meylan, who has been one of the most valuable pitchers in the country and was won national awards each of the last two weeks, shared Big 12 co-pitcher of the year honors with Texas Tech’s NiJaree Canady. She was also named to the all-Big 12 first team, along with infielder Rosie Davis. Both were selected all-Big 12 for the second straight year. Outfielder Jayelle Austin and infielder Aubrey Jones were named to the all-Freshman team, while catcher Audrey Schneidmiller was named to the all-Defensive team. All-Big 12 Cowgirls Oklahoma State Cowgirls infielder Rosie Davis.…