Team co-owner Jack Roush said he remains "guardedly optimistic" about his drivers' chances as the third week of the Chase for the NASCAR Sprint Cup prepares to unfold.Roush Fenway Racing drivers Carl Edwards and Greg Biffle head to Dover, site of this weekend's AAA 400, fourth and fifth, respectively, in the standings.Edwards, twice a winner this season (at Phoenix and Richmond), trails leader Matt Kenseth by 36 points while Biffle, a winner at Michigan in June, is 38 out of the lead.Kenseth, the former RFR driver, has won both Chase races and a career-best seven for the season. ...
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