Brandon Williams

Philip Rivers doesn't ease up, even in a meaningless exhibition game.

The San Diego Chargers ' $93 million quarterback chased Dallas Cowboys safety Barry Church for about 70 yards before making a touchdown-saving tackle after a turnover on Saturday night. He even popped the ball loose, although the play had been whistled dead.

It was the highlight of what was otherwise mostly a stinker, won 16-14 by the Cowboys on a safety with 3:46 left.

Three plays after Church's return, Cowboys quarterback Tony Romo threw a 9-yard touchdown pass to Miles Austin to tie the game at 7.

The Chargers (1-1) committed two turnovers in their first four series. The Cowboys' first-team offense was mostly dreadful, gaining only 49 yards. Quarterback Tony Romo was 4 of 11 for 30 yards with a touchdown and an interception, finishing with a rating of just 37.3, although the Cowboys did score their first offensive touchdowns in three exhibition games.

There were overthrows, underthrows and dropped passes on both sides. Cowboys backup linebacker Jason Williams had all but intercepted a pass by Billy Volek when teammate Brandon Williams accidentally slammed into him, knocking the ball loose.

San Diego went ahead when Marcus Mason scored on a 4-yard run late in the third quarter. The Cowboys tied it when Jon Kitna threw a 19-yard pass to Martellus Bennett early in the fourth quarter.

Mathews had another strong game for San Diego, gaining 53 yards on 12 carries and catching one pass for 13 yards.

Rivers was intercepted by Terence Newman on San Diego's first possession of the game. Romo gave it back six plays later when he was picked off by Eric Weddle.