Washington Redskins wide receiver Pierre Garcon said he didn’t expect to miss any significant playing time because of the foot injury that forced him out of a good portion of Sunday’s season-opening victory over the New Orleans Saints.

Garcon opened the game with four catches for 109 yards, including an 88-yard touchdown pass that was the franchise’s longest pass play since 1987.

Shortly after, Garcon left the game, briefly returned later in the first quarter, but then waved for a substitute and never returned.

X-rays conducted on Garcon’s foot were negative, and Garcon said afterward that he wasn’t exactly sure how he suffered the injury. Redskins Coach Mike Shanahan described the injury as somewhere along the top of Garcon’s foot. But Garcon didn’t believe the injury would cause him to miss next Sunday’s game in St. Louis.

 “I couldn’t tell you exactly,” he said. “I’ve got to get it looked at. But I should be ready to go.”

Shanahan said Monday that Garcon’s right foot remained sore and that the team doesn’t yet know about the receiver’s availability for Sunday’s game at St. Louis.

“It’s sore right now,” Shanahan said. “The x-rays were negative, which means he’ll have to deal with the pain in terms of if he can play and how much. He’ll get a better feel [Wednesday] when he tries it out in practice.”

Shanahan described the injury as a strain, though no official label has been given.

“It’s kind of like turf toe, but it’s not his toe,” Shanahan said.

Garcon was the team’s biggest signing in free agency. He agreed to a five-year, $42.5-million deal less than an hour into the free agent signing period and soon became quarterback Robert Griffin III’s favorite target.

The Redskins lacked explosive playmakers last season and believed that Garcon could fill that role. Griffin targeted the former Indianapolis Colt on his first three passes Sunday. On the team’s second possession, the rookie quarterback connected with Garcon on the 88-yard touchdown pass.

Last season, the Redskins had just two plays in which a player recorded a catch in the field and ran in for a touchdown. Shanahan said he believes the impact Garcon displayed in his limited playing time is a sign of things to come.

“I’m glad we’ve got Pierre on our football team to say the least,” Shanahan chuckled. “Ever since he got here, since we got him, he’s been a big-play guy. Big, and he’s strong. He’s 215-pounds, he’s in that 4.4 [-second 40-yard dash] range, and he can block, and he wants the football. So we gave it to him early and he made a number of big plays.”