Grizzlies' Jaren Jackson Jr. Suffers Hamstring Injury in First Practice

Jackson felt tightness during a drive to the basket, and his availability for the start of the season is uncertain.

Jaren Jackson Jr. experienced hamstring tightness during the Memphis Grizzlies' first practice of the season.
Coach Taylor Jenkins indicated that the injury might be a strain, and Jackson will undergo imaging to determine its severity.
Jackson's injury puts his participation in the preseason and the regular season opener on October 23 against the Utah Jazz in doubt.
The Grizzlies are already missing three other players: Vince Williams, GG Jackson, and rookie Cam Spencer, all sidelined with various injuries.
Jackson, a former NBA Defensive Player of the Year, averaged a career-high 22.5 points per game last season.