Mathews continued a terrific stretch at Triple-A Memphis with seven strikeouts over seven shutout innings in Thursday's start versus Gwinnett.
Mathews had an up-and-down first two months of the season but has been on a roll since the start of June, posting a 1.83 ERA, 0.79 WHIP and 45:15 K:BB over 39.1 frames covering seven starts. His 10.3 percent walk rate during that span remains a tad high, but it's greatly improved from the 18.2 percent mark he had in his first 10 outings. Mathews is not on the Cardinals' 40-man roster, but he looks ready for a chance at the big-league level sooner rather than later.