As expected (and previously announced), Lonzo Ball will rest his sore left knee while the Los Angeles Lakers take on the Chicago Bulls on Friday night. While his teammates trot out their Kobe Bryant-styled City Edition Nike uniforms at the United Center, the rookie out of UCLA could be sporting some unique apparel of his own, albeit more for medical purposes.

NBC LA’s Shahan Ahmed spotted Zo wearing patches on his knee connected to a device of some sort during the team’s shootaround in the Windy City.

The setup could be a TENS Unit (Transcutaneous Electrical Nerve Stimulation), which uses “stimulating pulses across the surface of the skin and along the nerve strands” to treat “nerve related pain conditions.” It might also be an EMS (Electrical Muscle Stimulation) Device, which can help “prevent, or reduce, muscle atrophy” by “increasing blood flow to muscles, increasing range of motion, increasing muscle strength, as well as enhancing muscle endurance.”

A third option? It may be an iontophoresis patch, which treats pain and inflammation with medication delivered by electrical pulses.

Whichever of those devices it is on Lonzo’s knee—or if it’s something else altogether—it’s clear that the Crown Prince of Chino Hills has a ways to go before he’s ready to play again.

With any luck, the equipment in question will have Ball back on the court during the Lakers’ five-game road trip, which continues on Sunday against the Toronto Raptors. Friday’s game will be L.A.’s 12th this season without Lonzo. So far, they are 3-8 in his absence, with wins in each of their last three Zo-less outings.