The Eagles were forced to settle for a field goal against the Chargers Sunday after sustaining a 260-yard, 64-play drive that featured six separate red-zone appearances and took 52 minutes off the game clock. 'It's disappointing not to score a touchdown when you keep a drive alive for more than three and a half quarters,' said quarterback Donovan McNabb, who completed 32 of his 66 passes, converted 26 first downs, and was carted off the field for X-rays twice during the drive. 'At least we came away with three points. Those 120 yards in penalties really hurt our field position, but those conversions on third and 21, third and 64, and the fake punt on fourth and 72 showed that this team never quits.' Backup QB Michael Vick took one snap from center during the nearly hour-long drive, failing to complete a screen pass. 