It doesn't look like it. This was in the St Paul Pioneer Press this morning.
Briefly: Joe Mauer took Thursday off from his rehab regimen, after a solid week of exercises and treatments on his strained left quadriceps muscle.
"He's really been pushing it hard the last few days," manager Ron Gardenhire said.
Mauer will resume his workouts today, in preparation for a return to the lineup once the tightness in his leg has completely subsided.