You can't 'strengthen' your knee and surrounding muscles when you have tendonitis, playing through it or working it only worsens the condition which is why most athletic trainers have their players sit out until their symptoms show visible improvements. Only at that point do they start easing them back in and begin targeting their quads/hamstrings etc.
lol this isn't a f**king career ending injury, far from it.
The Wizards have ALWAYS had the worst medical staff in the league, can't believe Leonsis hasn't replaced them yet. Already messed up Gil's career and they've already been mis-managing Wall and rushing him back too quickly