Second up is Sam Querrey of the USA against James Ward.

GAME, SET AND MATCH! (Ward 1-6 7-6 3-6 6-4 6-1): An incredible display of tennis from the British player as he seals victory in the fifth set, having dropped just one game in the final stanza. Britain take a 2-0 lead in the tie, after Andy Murray's earlier win over Donald Young.

WARD BREAKS AGAIN! (Querrey 6-1 6-7 6-3 4-6 1-5): Ward does it again and he's now just a single game away from victory. With the ball in his hands, you'd expect him to do it now...

QUERREY STEMS FLOW AGAINST HIM (Querrey 6-1 6-7 6-3 4-6 1-4): Querrey manages to stop the rot and finally get on the scoreboard this set with a held service game. Still, if Ward can hold his nerve during his next two service games, he'll secure a superb victory. Querrey with it all to do.

MAKE THAT TWO BREAKS! (Querrey 6-1 6-7 6-3 4-6 0-4): Ward secures a double break and he's now just two games from a famous victory in San Diego. Incredible turnaround when he looked down and out in the fourth set.

WARD IS FLYING! (Querrey 6-1 6-7 6-3 4-6 0-3): Invigorated by that come-from-behind performance in the fourth set, Ward can do no wrong now! He breaks Querrey once more early in the fifth and continues his streak to take a three-zip lead!

WARD SENDS IT TO A DECIDER! (Querrey 6-1 6-7 6-3 4-6): Fantastic stuff from Ward who breaks Querrey once more to seal the fourth set!

WARD BREAKS BACK! (Querrey 6-1 6-7 6-3 4-4): Incredible scenes! Ward refuses to be beaten and he breaks to level things up in the fourth set! Four apiece now and we could yet be headed for a fifth and final set!

QUERREY KEEPS NOSE IN FRONT (Querrey 6-1 6-7 6-3 4-2): Still Querrey is a break up in the fourth as the next few games go to serve. The American is now just two games away from claiming victory.

ADVANTAGE AMERICA AGAIN (Querrey 6-1 6-7 6-3 2-0): Querrey wastes no time in breaking Ward early in the fourth set and the American looks well set for victory now.

THE US TAKE THE LEAD AGAIN (Querrey 6-1 6-7 6-3): The third set goes the way of the US! Querrey's hit 10 aces to Ward's three so far today. What can the Brit produce in the fourth stanza now?

QUERREY HOLDS AGAIN (Querrey 6-1 6-7 5-2): The big American closes on the third set and now Ward will have to serve to stay in it.

WARD HANGS IN THERE (Querrey 6-1 6-7 4-2): Ward does well to stave off break points that surely would have put a bit dent in British hopes in this rubber and he holds to put the pressure back on Querrey.

QUERREY INCHES TOWARDS SET (Querrey 6-1 6-7 4-1): The US move within two games of the set as Querrrey holds again after Ward did well to avoid being broken again during his service game.

QUERREY CONSOLIDATES (Querrey 6-1 6-7 3-0): The big American is clearly enraged at needing at least four sets in this match now, and he thunders down some unstoppable serves that Ward never gets close to.

QUERREY BREAKS! (Querrey 6-1 6-7 2-0): Ward gives away two cheap break points - he saves the first with a great serve, but then drags an attempted backhand winner wide - and Querrey takes the intiative once more!

QUERREY BACK IN BUSINESS (Querrey 6-1 6-7 1-0): The American holds serve after the disappointment of the lost tie-break.

JAMES WARD WINS THE SET! Querrey fires long with a forehand at the net while trying to put the point away, and James Ward has levelled the match against a man 125 places above him in the world!

WARD 6-3: THREE SET POINTS! Querrey hits yet another into the net.

WARD 5-3: WHAT A WINNER! Ward clatters a forehand right on the line - two points for the set!

WARD 4-3: Querrey showing nerves as he puts another in the net! Ward with the mini-break once more.