Editor's note: Vartan Kupelian is the Champions Tour Insider and a PGATOUR.COM Contributor. Each week, Kupelian will size up the field and provide his top 5 players going into the tournament, based on factors such as the player's strengths, the course setup, recent performances, etc.

Bernhard Langer prepared for this week's defense at the Boeing Classic with a solid finish at the Constellation Energy Senior Players Championship.
After a sluggish start, Langer shot 66-67 on the weekend to move all the way up to a tie for sixth place at Westchester Country Club.
Langer's final-round 69 at TPC Snoqualmie Ridge for an 18-under 198 total gave him a second victory in 2010 in the Seattle area. He also won the U.S. Senior Open at Sahalee Country Club where he edged local favorite Fred Couples by 2 shots.
Langer and Couples are back on the Champions Tour after lengthy absences due to injury issues but both demonstrated last week at the Senior Players that their games are peaking for the stretch drive.
Langer hit 50 of 56 fairways at Westchester, No. 2 in the field, and tied for 13th in greens in regulation at 75 percent. He was T12 in putting with a 29.5 average for the four rounds. Couples won his first Champions Tour major.
The Champions Tour Power Rankings for TPC Snoqualmie Ridge:
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