OWINGS MILLS, Md. — The surging Baltimore Ravens will play the final quarter of the regular season without cornerback Jimmy Smith, who will be on injured reserve while serving a suspension for violating the NFL policy on performance enhancing substances.

Smith tore his left Achilles tendon in Sunday’s 44-20 victory over Detroit.

Ravens coach John Harbaugh confirmed Monday that Smith will go on IR, and said the team knew of the pending suspension before Sunday’s game.

NFL rules allow a player to serve a suspension on injured reserve.

Smith is the third Ravens player this season to be suspended for using PEDs, along with running back Kenneth Dixon and tight end Darren Waller.

“The guys are very vigilant for the most part on that, and sometimes they make mistakes,” Harbaugh said.

Rookie Marlon Humphrey replaced Smith on Sunday and is expected to take over the starting role.