Cardinals wide receiver John Brown expects to play Sunday against the Panthers.

John Brown smiled, but he didn't have a lot to say.

The wide receiver was optimistic he'll be back for the Cardinals Sunday in Carolina, after missing last week's game against Seattle because of leg issues related to a sickle-cell trait.

"I'm feeling good right now," Brown said.

Brown said he doesn't think it was related to the hamstring problems he fought through in the middle of the 2015 season.

Coach Bruce Arians said Brown did well in practice, although the Cardinals want to make sure the long

plane flight to Carolina does not impact Brown's health. He is officially listed as questionable, but there is optimism he will play.

"It's been handled a bunch (in sports)," Arians said. "Each guy is different. The symptoms and what happens with it. We talked to a lot of people who have treated young guys. The protocol worked pretty good for them."

Brown didn't get specific, but Arians had previously said Brown needed to make sure he stayed hydrated and got oxygen to replenish himself.

"We came up with a plan and we know what we have to do," Brown said. "I just have to take care of my body better."

After missing most of training camp and the preseason with a concussion, Brown got off to a slow start with only two catches in the first two games of the season. He became more productive since then, piling up 10 receptions for 144 yards against the Rams.

Brown has 24 catches for 301 yards in the six games before sitting out against the Seahawks. He does not yet have a touchdown catch.

Brown's return would be important to a receiving corps that took some hits against Seattle. Jaron Brown tore his ACL in the game and is out for the season. Wide receiver Michael Floyd hurt his hamstring.

Floyd was able to return to practice Friday on a limited basis, however, and "looked pretty good," Arians said. Floyd's availability will be a game-day decision.

As for John Brown, "I'm happy to be out there with my brothers," he said.