The group was performing in Lubbock when the bassist suffered the injury and he was hospitalised shortly after the show for treatment.
Urging fans to send well wishes to Bass in a post on Twitter.com, the band writes, "Everyone send there (sic) love to our brother @ebassprod 2nd Degree sprain."
Bass later uploaded a photo of himself lying in a hospital bed, as well as a close-up shot of his inflamed right foot, and tweeted, "Post show Er (Emergency Room) trip for the ankle. Rock n roll. No Shows Are Being Canceled!!!!! It is merely a flesh wound... Haha!
"Thank you all for the well wishes!! We have the best fans. Period. Have to sit down the rest of the tour, but I'm gonna play my a** off!! No jumping around on this thing!"