A lot. 37 times so far this season alone.
Answered on 11/30/10
In 2011, Ben Roethlisberger was sacked 40 times.
Through 8 games of the 2010 season, McNabb has been sacked 22 times.
In the NFL, both Eli Manning of the Giants and Peyton Manning of the Colts were sacked 16 times, the fewest of any starting QB for the 2010 season.
For the 2010 NFL season ... 1) Jay Cutler, Bears - sacked 52 times. 2) Joe Flacco, Ravens - 40. 3) Philip Rivers, Chargers - 38. 4) Donovan McNabb, Redskins - 37. 5) Sam Bradford, Rams and Michael Vick, Eagles and Kyle Orton, Broncos - 34.
David Carr of the Houston Texans was sacked an NFL record 76 times in the 2002 season.
A whole team cannot get sacked, but a quarterback behind the line of scrimmage can. The Colts quarterback, Peyton Manning, was sacked a total of zero times in the 2010 super Bowl.
Quarterback sacks are commonplace in the NFL even with all of the extra rules in place to protect the quarterback. The title of most sacked quarterback has gone to a variety of men. In 2009 it was Aaron Rodgers of the Green Bay Packers. In 2010 it was Jay Cutler from the Chicago Bears. 2011 saw Aaron Rodgers once again hit the ground the most. He was followed by John Elway of the Denver Broncos in 2012. Finally in the 2013 season Ryan Tannehill of the Miami Dolphins was the most sacked.
Bob Cutler died in 2010.