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Silvis, IL (Sports Network) - Defending champion Zach Johnson and Camilo Villegas each carded 7-under 64s on Thursday to share the lead after the opening round of the John Deere Classic.

Matt Bettencourt, Daniel Summerhays and Brendon de Jonge shot matching 6-under 65s at TPC Deere Run to share third place, while Colonial winner Boo Weekley is among a group of seven players tied for sixth at 5-under.

Weekley is joined by Jim Herman, Matt Jones, David Hearn, Vaughn Taylor, Kevin Streelman and Robert Streb.

Steve Stricker, who had his three-year winning streak at this event snapped by Johnson last year, shares 13th place with 12 other players at 4-under.

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