The Washington Redskins this morning kicked off their three-day rookie minicamp, marking the first practice for quarterback Robert Griffin III and his fellow 2012 Redskins draft picks.

Griffin sent out a tweet just before taking the field this morning, saying, “First NFL practice? Nice to meet you :) Can’t wait for the rest of our future dates, but I’m going to make sure each one counts #HTTR”

Also on the field for the Redskins are 12 undrafted rookies that were signed over the weekend, as well as a group of players invited to try out for the team.

The practices run Friday, Saturday and Sunday. Only Sunday’s practice will be open to the media.

The Redskins OTA sessions begin May 21. The team’s full-squad minicamp will run from June 11-14.

The roster of drafted and undrafted Redskins players for the minicamp is as follows:

C Grant Garner,6-3, 292, Oklahoma State, Undrafted

CB Richard Crawford, 5-11, 189, Southern Methodist, Seventh round

CB Chase Minnifield, 6-0, 185, Virginia, Undrafted

G Adam Gettis, 6-2, 292, Iowa, Fifth round

G Josh LeRibeus, 6-3, 312, Southern Methodist, Third round

LB Donnell Holt, 6-1, 242, Cal, Undrafted

LB Monte Lewis, 6-3, 251, Jacksonville State, Undrafted

LB Brian McNally, 6-3, 273, New Hampshire, Undrafted

LB Keenan Robinson, 6-3, 242, Texas, Fourth round

NT Vaughn Meatoga, 6-2, 295, Hawaii, Undrafted

QB Robert Griffin III, 6-3, 223, Baylor, First round

QB Kirk Cousins, 6-3, 214, Michigan State, Fourth

RB Antwon Bailey, 5-7, 201, Syracuse, Undrafted

RB Lennon Creer, 6-1, 215, Louisiana Tech, Undrafted

RB Alfred Morris, 5-10, 219, Florida Atlantic, Sixth round

RB Michael Shaw, 6-1, 195, Michigan, Undrafted

S Jordan Bernstine, 5-10, 210, Iowa, Seventh round

T Tom Compton, 6-5, 314, South Dakota, Sixth round

WR Kelvin Bolden, 6-0, 160, Southern Mississippi, Undrafted

WR Lance Lewis, 6-3, 209, East Carolina, Undrafted