After making the cut at training camp, White was instantly thrust into the limelight on the Buccaneers defensive line. The release of veteran Pro Bowl end Simeon Rice shortly before the start of the pre-season, injuries to free agent acquisition Patrick Chukwurah and the fact that top five 2007 NFL Draft pick Gaines Adams was deemed not ready led to White seeing extended playing time on the field.
In the game against the Atlanta Falcons in November 2007 White turned in a career performance. Starting opposite fellow rookie Gaines Adams he sacked Falcons QB Byron Leftwich twice and forced two fumbles, one of which was returned for a touchdown by Ronde Barber. The Bucs won the game 31-7 to take a 2 game lead at the top of the NFC South. After the game, Coach Jon Gruden was quoted as saying:
"Every time he makes a play, I can hear my brother up in the press box saying: 'I told you so.' But he's a good kid, a good guy, a hard worker, and he does have natural pass-rush ability. He's raw a little bit in terms of the big picture, but I give a lot of credit to Greg White. We got him late in training camp, and he's made a real impression on all of us.
An exclusive-rights free agent in the 2008 offseason, White signed his one-year, $370,000 tender offer on July 26. White later signed a new three-year, $2.845 million contract on September 15, 2008. He can make more money on incentives. White will become free agent in 2011.