Being a Playmate -- Hard on the Knees

1/27/2009 3:05 PM PST BY TMZ STAFF
Swedish model Victoria Silvstedt earned the coveted title of 1997 Playmate of the Year ... and she still has the injured knees to prove it.

The 34-year-old blonde knows you have to be willing to go down on your hands and knees to get what you want.