Klein was sidelined at the Texans' OTAs during the week after tweaking his hamstring, Aaron Wilson of KPRC 2 Houston reports.
Per Wilson, the injury isn't expected to keep Klein off the practice field for an extended period. The rookie second-round pick, who's competing with Foster Moreau for the No. 2 job behind Dalton Schultz, will have a chance to return to practice at some point during the Texans' mandatory minicamp, which begins Tuesday.