Portland Trail Blazers guard Brandon Roy waits for a teammate's free throw against the Denver Nuggets during the first quarter at the Pepsi Center on April 1, 2010 in Denver. Portland lost to Denver 109-92.  UPI/Gary C. Caskey Photo via Newscom

Portland Trail Blazers guard Brandon Roy will undergo arthroscopic surgery Monday on both knees, it was announced today by General Manager Rich Cho. The surgery will be performed by team physician Dr. Don Roberts in Vancouver, Wash.

Roy, 26, has missed 18 games this season (three games from Nov. 16-20 and the last 15 games beginning on Dec. 17) with a sore left knee.

A three-time NBA All-Star and 2007 NBA Rookie of the Year, Roy has led the team in scoring in each of the last three seasons. He holds career averages of 19.9 points, 4.4 rebounds, 4.9 assists and 1.08 steals in 297 career games (295 starts).

In 23 games (all starts) this season, Roy has averaged 16.6 points, 3.0 rebounds, 3.3 assists and 1.13 steals in 35.3 minutes per game. He scored 20 points or more in nine contests and led the team in scoring eight times.