If Mark Sanchez was hoping to hush the din of antsy New York Jets fans pining for Tim Tebow to supplant him as the team's starting quarterback, he did little to help his case in Saturday night's preseason home opener against the New York Giants.

Fortunately for Sanchez, Tebow was equally disappointing in relief during his home debut at MetLife Stadium, and the ineptitude of the league's most beloved backup sent even his staunchest supporters flooding for the exits early in the fourth quarter of the Jets' 26-3 loss.

Through two preseason games, the Jets have yet to score a touchdown or secure a win. And as the on-field follies continue to pile up, it's looking more and more like New York's quarterback controversy is becoming a quarterback catastrophe.

Sanchez, who has started all but one Jets game since being drafted fifth overall in 2009, took the field with the first unit as usual on Saturday, and for the most part he was accurate, completing 9 of 11 passes and spreading the ball among six receivers.

But it was the weight of the few mistakes Sanchez did make -- and the chances his group left on the field -- that made his night so underwhelming. Sanchez led the offense on six drives in the first half, and five were for five plays or fewer.

The Jets failed to convert on a third-and-1 from their own 41 on the opening drive and had to punt, then New York went three-and-out on its second drive, which ended when Jason Pierre-Paul sacked Sanchez on third-and-3 from the Jets' 7.

A five-play drive on the next Jets possession went nowhere, with only one play -- a 12-yard pass to Patrick Turner -- gaining positive yardage, and after an Eli Manning interception, the Jets squandered their good field position when John Conner got stuffed at the line on fourth-and-1 from the Giants' 36.