The 7-foot former all-star, who has played in only 10 of the team's 32 games this season, is averaging 19.5 points and 7.5 rebounds per contest.
He was recovering from a broken bone in his left foot while playing for his native Spain in the FIBA World Basketball Championships last summer and has been dogged for weeks by rumors alleging a trade demand.
"I don't know how long this thing is going to last," Gasol told the Commercial Appeal. "I love being in Memphis. I'm still here and I'm still competing. For people to second-guess my professionalism and my willingness to work is a real shame. I've been here the longest. I'm loyal to my team. I'm a loyal person. It's unfair."