Robert Griffin III is officially a member of the Washington Redskins. The dual-threat quarterback and reigning Heisman Trophy winner from Baylor University has agreed to terms on his initial contract with the team, just a week in advance of training camp starting at Redskins Park in Ashburn.

Griffin, the No. 2 overall pick in the 2012 NFL Draft, wrote on his twitter account Wednesday morning, “Well people .... It’s Time to go to Work!!! Off the unemployment line and oh yea HTTR!!!!”

The news garnered anticipated excitement from Redskins fans. Within three hours of his tweet, RG3’s post had received more than 2,300 retweets and 300 favorites.

NFL.com reports that Griffin’s contract is for $21,119,098 fully guaranteed over four years with a team option for a fifth year.

The Redskins are conducting a rookie training camp this week with all players expected to report for full training camp July 25. The first session of training camp open to the public is July 26 at 2:55 p.m. Click here to access the full list of training camp dates open to the public.

-Here is the full release from the Redskins:

The Washington Redskins announced today that they have signed 2012 first-round draft pick quarterback Robert Griffin III (second overall). Terms of the deal were not disclosed.

Griffin III (6-3, 223) played three seasons at Baylor, where he appeared in 41 games with 40 starts, capturing the 2011 Heisman Trophy last season as a junior. In his career, Griffin III amassed 12,644 all-purpose yards, including 10,366 passing yards, 2,254 rushing yards and 24 receiving yards. He completed 800-of-1,192 pass attempts (67.1 completion percentage), with 78 passing touchdowns and a 143.3 pass efficiency rating.

As a junior in 2011, Griffin III became the first Heisman Trophy winner in Baylor history in addition to being named a consensus All-American, unanimous All-Big 12 Conference first-team selection and earning national Player of the Year honors from Sporting News, Yahoo! Sports and Fox Sports. He was also the recipient of the Davey O’Brien Award, Walter Camp Award, Johnny Unitas Golden Arm Award and Chic Harley Award.

Griffin, 22, was born on Feb. 12, 1990. He attended Copperas Cove H.S. in Copperas Cove, Tex., where he was a two-year starter at quarterback, posting a 25-4 record. He was one of the nation’s top high school sprinters, receiving 2007 Gatorade Texas Boys Track and Field Athlete of the Year after setting state records in the 110- and 300-meter hurdles.