After initially stating that Adrian Peterson would return to the active roster for their Week 3 game at New Orleans, the Vikings later placed the running back on the inactive list indefinitely, pending the outcome of the court case against him. Despite coming into the game at 0-3, the Saints started well, scoring two touchdowns on their first two drives, although DE Everson Griffen was able to block the extra point attempt on the second. The Vikings responded to going 13-0 down with two field goals from 25 and 30 yards respectively, but an injury to Matt Cassel meant a debut for rookie QB Teddy Bridgewater. K Blair Walsh hit a 40-yard field goal to open the second half for the Vikings, but New Orleans closed the game out with an 18-yard touchdown pass from Drew Brees to Marques Colston early in the fourth quarter. They were aided on the drive by a penalty for unnecessary roughness against CB Captain Munnerlyn for a tackle on Brees, but many thought that Brees should also have been penalized for his reaction and the penalties offset. Regardless, the Vikings were forced to punt on their next possession and the Saints were able to run out the clock for a 20-9 win.

Based on the above article, answer a question. How many field goals did the Viking's get?
3