Foster, the league’s leading rusher last year, was hurt on his eighth carry.
“Looks like we're dealing with the same thing we were dealing with at the start of camp,” Texans Coach Gary Kubiak said. “Hopefully, we can get him back on the rehab train, and get him ready for opening day. He'll be day-to-day.”
Still, Kubiak did not definitively say Foster would be ready for the Texans’ Sept. 11 opener against Indianapolis — a game in which the Colts could very well be without quarterback Peyton Manning.
“Until he hops back out there, there's a concern,” Kubiak said, “but it sounds like we're heading in the right direction.”
Foster took issue with fans who addressed his fantasy value and not his human value on Twitter:
“4 those sincerely concerned, I'm doing ok & plan 2 B back by opening day. 4 those worried abt your fantasy team, u ppl are sick”
ESPN’s Colin Cowherd tweeted to him: “Hey Arian foster--We really do care about you as a human too. Um,now about that hammy?--signed everybody”
Foster shot back with an outstanding reply: “Did you want to be a critic as a child? Or did your dreams die with your humility?”