St. Louis Cardinals second baseman JJ Wetherholt recently graduated from prospect status, paving the way for another minor league player to take the No. 1 spot in the franchise's farm system. And that new top prospect, left-handed pitcher Liam Doyle, just turned in one of his best starts of the year. Doyle, MLB Pipeline 's No. 26 overall prospect for 2026, threw five solid innings for the Double-A Springfield Cardinals on Saturday. The 21-year-old gave up two runs on five hits and no walks, while setting a new minor league career high with eight strikeouts against the Corpus Christi Hooks, the Double-A affiliate of the Houston Astros. The young southpaw even got 11 consecutive hitters out in this game after allowing a leadoff single, including striking out the side in the second inning. The 2025 fifth-overall draft pick has looked much sharper over his last two outings. Doyle threw 4 1/3 innings on May 2, giving up one run on two hits and one walk, striking out five.…