The 26-year-old McCain defended eight passes and had one interception in 12 games for Houston in 2012 (two starts).
McCain’s reported return helps the Texans’ cornerback depth. Alan Ball, a reserve corner for Houston in 2012, joined Jacksonville earlier in free agency Johnathan Joseph and Kareem Jackson are the Texans’ starting cornerbacks.
The Texans were No. 16 in passing yards per game allowed a season ago but ranked ninth in yards per pass surrendered.