The Ravens are holding out hope that Zay Flowers will return quickly from the knee injury that knocked him out of their 35-10 win against Cleveland on Saturday, but they won’t know for certain until they see the results of an MRI scheduled for Sunday.

Head coach John Harbaugh said Flowers “has a chance to be OK with” the injury.

The second-year player earned his first Pro Bowl nod Thursday, becoming the first receiver in Ravens history to make the team. Flowers, who had 73 catches for 1,047 yards and four touchdowns through the first 16 games, is the fastest Raven to reach 100 career catches and tied Torrey Smith as the fastest to hit 1,000 receiving yards.

His absence would be a blow to the Ravens’ chances in the playoffs.

Flowers got off to a rough start against the Browns when he dropped Lamar Jackson’s perfectly placed pass, turning a would-be first down into a punt.

In back-to-back plays in the second quarter, he had one run for 9 yards and then a nice catch-and-run on which he faked out defenders for a first down. But the excitement of the play soon turned to worry when Flowers failed to get up and clutched his right knee. A replay showed that his foot hit lineman Andrew Vorhees’ leg as he fell, twisting it.

Left tackle Ronnie Stanley was running a step behind Flowers on the play and saw the whole thing happen. He tried to help Flowers get up at first, but Flowers stayed down until the medical staff came out.

“It was super tough seeing a guy like that go down,” Stanley said. “I’m not sure the severity of it all, but just to see him in pain sucked.”

The medical staff spent several minutes with Flowers on the field before assisting him as he limped into the medical tent. Shortly after, he left for the locker room. His return was considered questionable; he was ruled out after the teams returned to the field following halftime. Jackson said it hurt him to see Flowers injured.

Although the Ravens’ offense spreads the wealth among its wide receivers, tight ends and running backs and attacks in a variety of ways, Flowers is the team’s No. 1 receiver even if he does not see the workload other top receivers around the league do. The Ravens like to use his speed in the short game with screen plays and as a deep target.

Behind Flowers, the Ravens have a clear No. 2 receiver in Rashod Bateman. However, the depth chart gets murkier after that. The Ravens traded for Carolina Panther Diontae Johnson, who could have stepped into the third receiver role, but his short time as a Raven was filled with drama. He was released in Week 17.

The Ravens picked up Steven Sims after releasing Johnson, but he’s primarily played a special teams role. Beyond Flowers, Bateman and Sims, the Ravens have Nelson Agholor (who has been recovering from a concussion and did not play Saturday), Tylan Wallace and rookie Devontez Walker on their active roster.

“Obviously that’s tough seeing a guy like Zay go down, especially for our offense,” Wallace said. “But we have the faith in everybody that we have in our receiving room to go out there and make plays.”

After Flowers’ injury, Bateman and tight end Mark Andrews helped the Ravens to score quickly out of halftime. However, the offense stalled over the next two drives, which ended in punts. The Ravens finally gained momentum in the fourth quarter and put the game away with two touchdowns by running back Derrick Henry.

“Seeing us being able to go out there and plug in and still be able to pull out the win definitely, I think, gives us that confidence,” Wallace said.

This story has been updated.