Quinn Mathews is dominating at Triple-A, but the Cardinals appear to be taking a patient approach with their highly regarded left-hander.

It’s been years since the Cardinals had a starting pitching prospect arrive with as much anticipation as left-hander Quinn Mathews, who will make his Major League debut on Saturday against the Blue Jays at Rogers Centre.

The St. Louis Cardinals are promoting number seven prospect, Quinn Mathews, for his MLB debut against the Toronto Blue Jays.

Seeing as my last Prospects Report came out three weeks ago, you might think a lot has changed. Well, yes and no. The draft happened, introducing a bunch of new prospects to the player pool. You'll be hearing more about those in the weeks to come.

Quinn Mathews has been knocking on the door of a callup to the big leagues, and another superb start for Triple-A Memphis on Friday will only help his case. The Cardinals’ No. 7 prospect posted a season-high 10 strikeouts while tying his season-long outing of seven innings,