Diego Chara, Carlos Gruezo

Portland Timbers midfielder Diego Chara, left and FC Dallas midfielder Carlos Gruezo, right, vie for the ball during the second half of an MLS soccer match in Portland, Ore., Wednesday, April 13, 2016. FC Dallas won 3-1. (AP Photo/Steve Dipaola)

(Steve Dipaola)

The Portland Timbers are dealing with mounting injuries - again.

Timbers winger Darren Mattocks and midfielder Diego Chara both sustained injuries in Wednesday's 2-1 loss to FC Dallas and will be unavailable for Sunday's game against New York City FC.

Mattocks tore his meniscus in the game and underwent surgery Friday. He will miss the next four to six weeks, which could leave the Timbers pretty thin on the wing for the next month and a half.

Chara injured his toe in the game and will not be able to play Sunday. Timbers coach Caleb Porter said Chara is currently having trouble putting pressure on his toe, but added that he was hopeful Chara would be back in time for next week's home game against the Vancouver Whitecaps.

"I think we've had a season's worth of injuries and bad luck all in the first third of the season," Porter said. "Hopefully, we got that out of our system and we can start to now get things turning in our favor, but we also have two more injuries to manage tomorrow."

Chara and Mattocks join a long list of Timbers players that have dealt with injuries this season.

Eleven Timbers have suffered injuries that have kept them out of games in the first 11 matches of the year. Nine of those players have been potential starters.

The Timbers currently have four key players dealing with injuries.

Along with Chara and Mattocks, Timbers goalkeeper Adam Kwarasey is still recovering from a torn ligament in his finger and won't be back for another four to five weeks and Timbers right back Alvas Powell is still recovering from wrist surgery and won't be back until mid-June, Porter said.

Timbers defender Taylor Peay has also been dealing with a sprained knee for the last several weeks, but could be back in training this week.

"I'll be honest, I've never dealt with this many (injuries) in this many games," Porter said.

-- Jamie Goldberg | jgoldberg@oregonian.com

503-853-3761 | @jamiebgoldberg