Rob Gronkowski’s big day just took a turn for the worse.

The New England Patriots tight end appeared to suffer a scary-looking injury in the third quarter of Sunday’s game against the New Orleans Saints at Mercedes-Benz Superdome.

Gronkowski was slow to get up after being tackled by two Saints defenders, and some feared the All-Pro tight end had re-injured his back. (Gronk already has had three back surgeries and suffered a season-ending back injury in Week 12 of 2016.)

Several trainers attended to Gronkowski on the sideline, but the 28-year-old later was seen pedaling on an exercise bike after being examined in New England’s medical tent.

Despite concerns about his back, the Patriots officially announced Gronkowski’s injury as a groin injury and marked his return to the game as questionable.

Gronk already had surpassed 100 yards receiving on the day and hauled in a highlight-reel touchdown, so his absence certainly hurts New England, but the Pats would dodge a bullet if this injury isn’t back-related.

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Thumbnail photo via Greg M. Cooper/USA TODAY Sports Images