Andy Roddick played a key role as the United States secured their place in the Davis Cup final after completing a 4-1 victory over Sweden in Gothenburg.

Roddick fired 16 aces en route to recording a 6-2 7-6 (7-3) 6-4 victory over Sweden's Jonas Bjorkman in the first reverse singles.

With his second win in the tie, Roddick secured a decisive 3-1 lead, and booked the Americans' first trip to the final since 2004.

James Blake extended the visitors' advantage by winning the dead rubber against Simon Aspelin 6-1 6-3.

Roddick is a big fan of the Davis Cup and he showed where his priorities lay after the encounter.

"This is my number one priority for the rest of the year, and I'll be discussing my tournament schedule with Jimmy (Connors, his coach) and Patrick (McEnroe, the USA captain) to make sure I look after my body and it's right where it needs to be for the final," he said.

"It's what you work for. I'm so proud to be part of this team, I'm so proud of my team-mates, I wouldn't trade this team for any in the world.

"I love these guys, and we get another shot at winning the Davis Cup, so I'm really happy right now."

The all-time leader in Davis Cup titles with 31, the United States have not won since 1995, its longest title drought in the event.

The Americans will face defending champions Russia in the final starting on November 30.

The Russians wrapped up a 3-2 victory over Germany behind Igor Andreev's four-set victory over Philipp Kohlschreiber.

Coming into Sunday with a 2-1 deficit, the Russians pulled out their sixth win in nine head-to-head match-ups with the Germans with Mikhail Youzhny and Andreev holding their nerve at the Olympic Stadium in Moscow.

Skipped over in the first round of singles and coming up short in the doubles with team-mate Dmitry Tursunov on Saturday, Youzhny posted a 6-4 6-4 3-6 6-3 victory over Philipp Petzschner to level the tie at 2-2.

It was his fourth straight singles win in the Davis Cup dating back to a quarter-final win over France in 2006.

Andreev, who opened the tie with a three-set win over Tommy Haas on Friday, sealed Russia's third appearance in the final in six years by continuing his success over Kohlschreiber, improving to 5-0 all-time.

"It's an amazing feeling playing here in Moscow and it's the second time I won the deciding point, it's great,'' said Andreev, who won 6-3 3-6 6-0 6-3.

"I like this feeling of adrenaline in your body before going on the court, it's so exciting to play here and it's great for our country to reach the Davis Cup final for the second year in a row.''