Los Angeles Rams wide receiver Puka Nacua will be placed on injured reserve and will miss at least four games due to a knee injury sustained Sunday.

Rams head coach Sean McVay provided the update to reporters Monday afternoon and clarified that the injury is to Nacua’s PCL. The news contradicts earlier reports that Nacua would be considered week-to-week.

Nacua appeared to sustain the injury in the first half of his team’s 26-20 loss to the Lions at Ford Field. He briefly returned, but then left the game again to meet with medical trainers.

Nacua was able to walk on the sideline but left the game on a cart.

The Rams announced after halftime that he would not return to the game.

The Lions led 10-3 at halftime and pushed their lead to 17-3 before the Rams rallied all the way back to force the extra period. Lions running back David Montgomery, however, ran in a 1-yard touchdown on the team’s first drive of overtime to seal the six-point win for Detroit.

Nacua, 23, burst onto the scene as one of the biggest surprises of the 2023 season. A fifth-round rookie out of BYU, he emerged as the Rams’ No. 1 receiving option and one of the most productive receivers in the NFL last season. He finished the season with 105 catches for 1,486 yards and six touchdowns, earning Pro Bowl honors in the process.

With Nacua alongside a healthy Cooper Kupp following two injury-plagued seasons, the Rams entered 2024 with one of the NFL’s most promising wide receiver tandems in search of a fourth playoff appearance in five seasons.

Kupp caught 14 passes for 110 yards and a touchdown in Sunday’s game. He’ll remain the focus of the Rams’ passing game as long as Nacua is sidelined.