Last 11 matches Sabonis only scored twice 20+ points (he had 10/11 matches with 20+ before that), also in 6 of them he had 4+ turnovers and only 3 times more than 5 assists (10/13 in the previous stretch)
Today he has 4 points with 1/3 shots, 0 assists, 3 turnovers and several times that he lost the ball that went out of bounds from a Jazz deflection.
Besides from Monk running the offense most (and somehow those pick n rolls between them tend to be vanished), Sabonis has something on his finger for the last couple of weeks that perhaps bothers him, though I haven't seen anything mentioned from Kings reporters in social media.