The Browns signed a third of their 2018 draft class Sunday, finalizing the rookie contracts of offensive lineman Austin Corbett (second round, No. 33 overall), wide receiver Damion Ratley (sixth round, No. 175 overall) and cornerback Simeon Thomas (sixth round, No. 188 overall).

Corbett, the first pick of the second round, signed a four-year deal worth about $7.568 million, including a signing bonus of $3.584 million, according to the contract tracking website Spotrac.com.

With future Hall of Famer Joe Thomas retired, Corbett is a candidate to start at left tackle, where he played at Nevada and practiced during the team's recent rookie minicamp. If Corbett doesn't pan out at left tackle -- Shon Coleman figures to be his main competition there -- the Browns would likely move him to guard. They think he's versatile enough to play anywhere on the line, including center.

Ratley signed a four-year contract worth about $2.575 million, including a signing bonus of $160,119, and Thomas signed a four-year deal worth approximately $2.561 million, including a signing bonus of $146,878, per Spotrac.com.

Ratley, who played at Texas A&M, and Thomas, a Louisiana product, will need to fight this summer to make the team.