Looking to the bolster the depth in the backfield, the Ravens activated preseason sensation Bobby Rainey to the 53-man roster Tuesday. (US Presswire)

The Ravens officially placed RB Lardarius Webb, who tore his left ACL in Baltimore’s 31-29 win over Dallas on Sunday, on injured reserve Tuesday afternoon.

In a corresponding move, the Ravens signed RB Bobby Rainey, who has been on Baltimore’s practice squad the past five weeks, to the 53-man roster. Rainey initially made the 53-man roster after final cuts were made on Aug. 31 but was released the day of Baltimore’s first game against Cincinnati on Sept. 10.

Rainey then joined the Ravens practice squad after clearing waivers and has been with that unit since.

Rainey was a fan favorite during the preseason. He led the Ravens in receiving during Baltimore's four exhibition games, catching 14 passes for 163 yards and two touchdowns. He also had 55 rushing yards.

Hailing from Western Kentucky, Rainey went undrafted in April. In college, Rainey set a Western Kentucky school record with 4,542 career rushing yards, running for over 1,600 in each of his junior and senior seasons.

Follow Ravens reporter Jason Butt on Twitter: @CBSRavens and @JasonButtCBS