Percy Harvin playing Saturday depends on how well (or if) he practices Tuesday

Eric Edholm

NFL games are not played on Tuesdays, but this is a huge day for Percy Harvin.

Seattle Seahawks head coach Pete Carroll says that in order for Harvin — who has played a mere 20 snaps this season — to play in the divisional-round playoff game against the New Orleans Saints, he must first get through Tuesday's practice, per 710 ESPN's Liz Matthews.

Harvin practiced last week, including on Friday. Carroll seemed to suggest that Harvin remained somewhat of a day-to-day concern for his surgically repaired hip.

Do the Seahawks need Harvin to play? Well, no; they have gotten this far without him. But adding one more tool to Russell Wilson's belt can't be a bad thing, and Harvin showed he can make his impact felt on special teams, too, returning a kickoff 58 yards in his lone game this season, against (of course) the Minnesota Vikings.

As for how the Seahawks might use Harvin if he plays, Carroll was a bit vague.

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Eric Edholm is a writer for Shutdown Corner on Yahoo Sports. Have a tip? Email him at edholm@yahoo-inc.com or follow him on Twitter!