The Illinois offense has added another potential impact piece to boost its push for a 2019 bowl bid.

A source confirmed AL.com's report that Alabama offensive lineman Richie Petitbon will transfer to Illinois for his final season of eligibility.

AL.com reports that Oklahoma, Ole Miss and Vanderbilt were among the other schools in the mix.

Petitbon was the No. 62 overall prospect Class of 2015 and the No. 5 offensive guard. He played six games in 2018 for the national runner-up.

Graduating from UA in May and choosing to transfer after the season, Petitbon will be immediately eligible to play for the Fighting Illini as a graduate transfer.

Redshirting in 2015, Petitbon saw action in one game in 2016 after tearing his ACL in April. He returned to full health and practiced at all five positions along the offensive line throughout his career. Petitbon saw the field for Alabama as a reserve offensive lineman in six games this fall.

Petitbon was a premier prospect out of Gonzaga High School in Washington D.C. and was high school teammates with Illini star running back Reggie Corbin, who will return for his redshirt senior season.

Petitbon never cracked the starting lineup at Alabama but would be one of the top-six linemen at Illinois and possibly push Larry Boyd, who will return after an academic redshirt in 2018, for Nick Allegretti’s open starting spot at right guard.

Petitbon gives Illinois another no-doubt power-five offensive lineman on a depth chart that lacks them beyond the first string. He also would allow the Illini time to develop younger talent like second-year players Jordyn Slaughter and Kievan Myers.

Illinois also offered Richie's younger brother, Luke Petitbon, a Class of 2020 offensive lineman.

“(Corbin and Richie) were teammates all four years at Gonzaga,” Luke Petitbon told Illini Inquirer. “My whole family loves Reggie.”

Petitbon's grandfather, also named Richie, played for the Chicago Bears as a safety for 10 seasons, earning Pro Bowl honors four seasons. The elder Richie Petitbon also was the defensive coordinator for the Washington Redskins for a dozen years, helping Washington win three Super Bowls. He was head coach for Washington in 1993 after Joe Gibbs resigned.

Petitbon is the fourth transfer addition to Illinois since the end of the season. Illinois officially announced the additions of Oklahoma wide receiver AD Miller, Miami wide receiver Jeff Thomas and Georgia tight end Luke Ford. Ford and Miller already arrived on campus, and Thomas is expected to arrive soon. Though reports out of Miami suggest that Thomas reached out to Miami to possibly return.