MEMPHIS -- Arron Afflalo worked up a sweat running sprints up and down the floor during Trail Blazers shootaround Saturday afternoon at FedEx Forum. But while his teammates worked on shooting drills, the veteran shooting guard didn't touch a basketball.

Afflalo suffered a right shoulder strain late in the fourth quarter against the Golden State Warriors on April 9. He was initially given a one to two week timeline for his return and is officially listed as doubtful for the Game 1 of the first-round series against the Memphis Grizzlies on Sunday.

In Portland on Friday, Afflalo went through brief shooting drills from inside the paint under close supervision of of Blazers' Director of Player Health and Performance Chris Stackpole. He went through conditioning drills on Saturday for most of the 30 minutes the Blazers' shootaround was open to the media. Afflalo said he hasn't gone through contact drills since suffering the injury.

"Just a lot of rehabbing," He said of his last nine days following the injury. "Haven't been able to do too much heavy basketball stuff. So I'll just try to see how I feel today and tomorrow morning and go from there."

If Afflalo can't go second-year wing Allen Crabbe could get the nod as the starting shooting guard, but Afflalo wasn't ready to completely rule out a return to the court in Game 1.

"I feel good," he said. "Obviously I don't know about the game tomorrow, but I feel good."

With Afflalo likely out for the opening game, the Blazers will lean on Crabbe and second-year guard CJ McCollum to fill in at shooting guard. McCollum has played the best basketball of his career over the past 15 games since moving into an increased role following Wesley Matthews' season-ending Achilles injury on March 5.

McCollum has injury concerns of his own. He missed the Blazers regular season finale with a sprained left ankle, but says he feels better heading into into Sunday.

"It feels pretty good," said McCollum, who is officially listed as probable for Game 1. "I got a nice workout in yesterday, some conditioning and a lower body lift before practice. So I'm feeling pretty good."

Over the final 15 games of the season, McCollum averaged 13.5 points and shot 51 percent from the field, including 41 percent from three-point range. He scored in double figures seven times over his final eight games, including 26 points in a loss to the Utah Jazz and 27 points in a win over the Lakers. McCollum said his approach won't change regardless of Afflalo's availability.

"Obviously Arron is a big part of this team so I look forward to him returning, but my role is not going to change," McCollum said. "I'm still going to be aggressive when I go out there and try to make plays for myself and others. Still got to be in-tuned to the game plan and be ready to go whether he plays or not."

Notes: Alonzo Gee is officially listed as questionable after injuring his right foot against the Dallas Mavericks on Wednesday. He said on Saturday that he expects to be ready to play in Game 1. Nicolas Batum (right knee) said he went through a three hour workout on Friday and should be fine for the series opener. Chris Kaman (lower back) is officially listed as probable, but is expected to be available.

The Grizzlies officially list point guard Mike Conley (right foot sprain), wing Tony Allen (left hamstring strain) and forward Jeff Green (low back tightness) as questionable, but all three are expected to play in Game 1.

-- Mike Richman

mrichman@oregonian.com | 503-221-8162 | @mikegrich