Scott Barrett was the hero for Leyton Orient on Saturday afternoon as he made three superb saves late-on to keep his side's 1-0 lead at second division Bristol City intact.

Steve Watts gave the visitors a deserved lead on the half-hour when he lobbed Mike Stowell in the City goal, and after the break, the O's defence stood firm to ensure their safe passage in to the second round of the FA Cup.

After the game, a delighted Paul Brush said: "Scott Barrett made a couple of magnificent saves, one after the other in the second half. He may well get man of the match, but the team deserved to win and we may even have extended the lead in the last five minutes.

"It was a big day for us, and the players have shown they can handle a good passing side and defend with some quality.

"We haven't been playing well in the last few weeks and in the programme we were described as a team of youngsters, free-transfers and hopefuls, but the players have taken the opportunity to prove they're better than that."

Orient were pressed into a change of formation before a ball was kicked when Billy Beall fell ill on the coach, meaning that they employed wing backs and three centre-halves for the first time this season, so nineteen-year-old Chris Dorrian filled in for his fourth senior start on the right.

The change had the desired effect as Orient started off with a performance completely transformed from the error-strewn effort of last week, as the visitors took control early on, and managed to convert this first half dominance in to a goal.

It came on the half-hour mark when Andy Harris chipped an inch-perfect through-ball into the path of Watts, who coolly lofted the ball over the head of ex-Wolves keeper Stowell for his fifth strike of the season.

Orient continued to control proceedings after finding the net and Harris flashed a shot wide of Stowell's right-hand post.

City manager Danny Wilson realised that changes were necessary and on the 37 minutes they too reverted to a 5-3-2 formation, with Simon Clist replacing Mark Lever.

However, Orient were still untroubled, reaching the interval with Barrett not having to make a save.

That was to change after the break though, as City came out a lot stronger, putting the visitors under a tremendous amount of pressure.

Seventy-six minutes were on the clock when Barrett was to make the first of three superb saves, when he closed down the angles well to block Lee Peacocks effort.

The ball fell kindly for Tony Thorpe ten yards out, but Dave McGhee was on hand to clear his effort off the line.

Four minutes later Thorpe met Scott Murray's cross with a bullet-like header, but once more, Barrett was there to brilliantly deny him.

Barrett's personal hat-trick of vital saves was completed a matter of seconds afterwards, diving low to his left to keep out a curling effort from home sub Marvin Brown.

With all the City pressure mounting on Orient's goal, the away side were restricted to attacking on the break, but they had two opportunities to wrap the game up in the last five minutes. With both Jeff Minton and Danny Hatcher spurning one-on-one chances.

Those misses were not to matter as City couldn't find the key to unlock the O's defence, and after four tense minutes of injury time, the final whistle was blown to seal a famous victory.