Graham Rahal will formally announce his move to Rahal Letterman Lanigan Racing at a press conference tomorrow afternoon at Indianapolis Motor Speedway.

The move had been expected since the season ended, as the 23-year old driver will join his father’s team on a full-time basis. He ran the 2010 Indy 500 for the team, finishing in 12th. It is expected to be a three-year deal. He brings with him TBC Retail Group as a sponsor, who has been with him since 2010.

After two disappointing seasons driving for Chip Ganassi, Rahal will look to finally live up to the high expectations that were put on him at an early age. He won his first IndyCar race at St. Petersburg in 2008, but has not won a race since. He has competed in 69 races since that historic day, grabbing two poles and six podium finishes along the way.

Rahal Letterman Lanigan Racing nearly won the Indianapolis 500 last year with Takuma Sato, who crashed on the final lap trying to take the lead from Dario Franchitti. In five Indy 500 starts, Graham has finished 33rd, 31st, 12th, third in 20011, and 13th last year. The team is will likely field a second car next season, with Sato as a possible teammate for Rahal.