Rob Wasserman has reportedly been hospitalized. Longtime collaborator Bob Weir posted the news on his Facebook page saying that Wasserman is “facing a serious struggle.”

“I hope that we can all pause to send him and his family the strength and support to face these difficult days. Rob and family, my thoughts, heart and spirit are with you today,” Weir added.

Wasserman, the bassist who co-founded RatDog with Weir, is also part of the Keller Williams Trio and has collaborated with the likes of Lou Reed, Van Morrison and many others.

UPDATE

Weir has confirmed that Wasserman has passed away. Read more here.