LONDON (Reuters) - Roger Federer's former coach Peter Lundgren resigned from his role with Britain's Davis Cup team on Wednesday, the Lawn Tennis Association (LTA) said.

Paul Annacone, the men's head coach, will replace the Swede as Davis Cup coach.

"I would like to thank Peter for all his work over the past 18 months," Britain's Davis Cup captain John Lloyd said in a statement.

"He has been a great asset to the Davis Cup team. Peter is keen to spend more time with his father who is unwell and our thoughts are with Peter and his family at this difficult time."

American Annacone, who worked with Pete Sampras and Tim Henman, will now focus on Britain's World Group playoff in September after they were beaten by Argentina in the first round.

"Paul has been working closely with many of our top players in his role as head coach and his knowledge and experience will be vital as we prepare for the play-off," Lloyd said.

(Reporting by Martyn Herman, editing by Pritha Sarkar)