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.

Quinn Mathews is being called up by the St. Louis Cardinals, but Eric Samulski isn't rushing to add him to his fantasy roster.

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

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,

There isn't as much direct incentive for teams to promote top prospects right now, but with big names on the move and opportunities opening up, the deadline nonetheless tends to be one of those periods when we see teams promoting top prospects,