Cardinals OF prospect Joshua Báez launched a 473-foot grand slam on Friday for Triple-A Memphis.

Báez went deep for the first time since a two-homer explosion back on July 2. It was his 29th round-tripper of the year. The 23-year-old’s off-the-charts power/speed combination gives him a chance to be the most impactful fantasy prospect to receive the call to the majors in the second half. There are some lingering swing-and-miss issues that are probably the biggest reason why he’s still in the minors. He should have an immediate impact once he is promoted, which makes Báez a worthwhile stash candidate in all fantasy leagues.