With Gasol out, who fills his place?

Memphis Grizzlies center Marc Gasol suffered a Grade 2 MCL sprain against the Spurs on Friday night, an injury that will keep him sidelined indefinitely. The loss represents a huge blow to the Grizzlies, as they cannot afford to lose too much ground in a hypercompetitive Western Conference where as many as 12 teams are expected to compete for a playoff spot.