Former Arsenal winger Serge Gnabry joins Bayern Munich

Bayern Munich have signed former Arsenal winger Serge Gnabry on a three-year deal.

The 21-year-old made his Gunners breakthrough in 2012 but after struggling to command a regular berth - and a loan spell with West Brom - he joined Werder Bremen last summer.

An impressive season which yielded 11 goals from 27 appearances brought him to Bayern's attention and the two-time Germany international has now joined the Bundesliga champions.

"It is a great honour to be part of FC Bayern," Gnabry said. "Before me lies an exciting time, which I am very much looking forward to."

Bayern chairman Karl-Heinz Rummenigge added on his club's official website: "We are delighted to see another young German national player in FC Bayern in Serge Gnabry. Serge has developed very well in Bremen."

Gnabry left Werder Bremen after just one season, triggering a clause in his contract allowing him to leave the Weser-Stadion.

"After a very good first year for him at Werder, Serge has informed us that he would like to take the next step in his career," managing director Frank Baumann told Werder's website.

"He will therefore activate a clause in his contract and leave the club at the end of the month."

Bremen coach Alexander Nouri added: "It's obviously a pity as Serge was a go-to guy for us, someone who has undergone a remarkable development and has helped the team enormously with his performances.

"We wish him all the best for the future."