Miami's biggest game of the season just got a major complication. Star wide receiver Malachi Toney injured his ankle in practice this week, and his availability for Saturday's clash with Notre Dame is now in question, per CBS Sports.

The timing could hardly be worse. The Hurricanes are 8-0 and sitting atop the College Football Playoff rankings, with the Notre Dame matchup looming as their stiffest test yet. Toney isn't just Miami's leading receiver — he's one of two Heisman Trophy contenders on the roster, and the offense runs through him more than any other skill player.

Miami has not ruled Toney out, and reports across CBS Sports, The Sporting News and Yahoo Sports describe his status as uncertain rather than doubtful. The Hurricanes will likely manage his practice reps through the week and make a game-time call.

If Toney can't go — or plays at less than full speed — Miami's margin for error against the Irish shrinks considerably, and the Playoff picture at the top could get a shake-up. Expect his status to be the most-watched injury storyline in college football heading into the weekend.