Trying to snap a three-game losing skid, the Panthers flew to Lambeau Field for Week 11 duel with the Green Bay Packers. This game set a record as QB Vinny Testaverde and Packers QB Brett Favre had the oldest combined age of two starting quarterbacks at 82 years and 44 days. In the first quarter, Carolina trailed early as Packers CB Tramon Williams returned a pooch punt 94 yards for a touchdowns. The Panthers would get on the board as kicker John Kasay managed to get a 26-yard field goal. In the second quarter, Green Bay increased its lead with Favre completing a 4-yard TD pass to WR Greg Jennings and a 26-yard TD pass to TE Donald Lee. In the third quarter, Green Bay continued its domination as Favre and Lee hooked up with each other again on a 12-yard TD pass. Carolina would respond with Testaverde completing a 2-yard TD pass to TE Christian Fauria.  In the fourth quarter, the Panthers tried to come back as Testaverde completed a 5-yard TD pass to WR Drew Carter. However, the Packers sealed the win with kicker Mason Crosby getting a 47-yard field goal.
Question: How many yards was Mason Crosby's field goal longer than John Kasay's?
Answer: 21