Werder Bremen
On 1 September 2007, he moved to Werder Bremen on an undisclosed fee, believed to be around €3 million and signing a four-year deal that will last until 2011. Four months after going to Werder Bremen, he was joined by Schalke teammate Mesut Özil, who suffered the same fate as Boenisch. He made his debut for the club, coming on as a substitute for Duško Tošić in the 80th minute, as Werder Bremen won 2–1 against Eintracht Frankfurt. Soon after, Boenisch suffered an knee injury during a U21 match when he representing Germany, After a month's layoff, Boenisch made a return from injury, on 16 February 2008, coming on as a substitute in the 84th minute for Aaron Hunt, in a 2–0 win over Nuremberg. Three weeks after his return, he scored his first goal for the club, in a 6–3 loss against Stuttgart. He returned to the starting line-up throughout March and was criticised by the club's fans for passing the ball to opposition player. However, it was short-lived when when he suffered an hamstring injury that kept him missing for the rest of the season, though he was an unused substitute in the final game of the season.
The next season, having suffered an injury ahead of a new season, he became a regular in the first team. Throughout his five years at Werder Bremen, Boenisch was usually placed on the left of defence, either as a central or right. He also made his UEFA Champions League debut and was also involved in the club's match in the UEFA Cup final against Ukrainian side Shakhtar Donetsk, where he made his first start and played throughout the match, including extra time. In the final minutes with only two minutes left, Boenisch received a yellow card for dissent. Unfortunately, Werder Bremen would lose 2–1. Unlike many players in the UEFA Cup campaign, he made nine appearances, making seven starts. Despite not winning the UEFA Cup, the club would win the DFB-Pokal after beating Bayer Leverkusen 1–0, where Boenisch started in the left-back position and played the whole match. It was also Boenisch's first title.
The next season, he suffered a back injury, resulting him to miss the opening game of the season. Boenisch previously suffered an ankle ligament in the 2009 European Under-21 Championship campaign After making a return the next league game, he scored his first goal of the season, in a qualification round of Europa League, in a 6–3 win over Aktobe. Soon in December, Boenisch suffered an injury again – after a collision with Carlos Zambrano in the right knee. He made his return, three months later, in a 3–2 win over Bochum on 20 March 2010. As in the previous season, Werder Bremen made it to the final in the DFB-Pokal. Boenisch aarted in the final, but Bremen lost 4–0 against Bayern Munich. Towards the end of the season, Boenisch was in talks on signing a new contract extension with the club.
After several appearances throughout August and early September, Boenisch suffered an knee injury, that kept him out throughout the 2010–11 season and early first half of 2011–12 season as well. In March, he made a return from injury and was expected to play again after his surgery was successful. However, his injury soon aggravated and he missed the rest of the season. In April, after long talk of negotiations of a contract extension, Boenisch finally signed a new deal that would keep him until 2012. In September, Boenisch announced he would make a comeback in the second half of the league season. In mid-November, Boenisch made a recovery from injury and returned to training.
In January, he made a return playing for the club's reserve. Injuries struck again twice but he made a successful recovery. Boenisch made his first appearance since being injured coming on as a substitute for Tom Trybull in the 78th minute, in a 1–1 draw against Augsburg on 24 March 2012. In a 2–2 draw against Borussia Mönchengladbach on 10 April 2012, Boenisch received a straight red card early in the game and missed two matches.
As of the end of the 2011–12 season, Boenisch became a free agent having let his contract run down and played poorly during the UEFA Euro 2012 that VfB Stuttgart withdrew their contract offer, citing lack of performance as the reason for their action.
On 6 August 2012, Boenisch was handed a trial at English Premier League side Stoke City and started a pre-season friendly for the club against Torquay United and Yeovil Town. However, his trial was unsuccessful and he was not offered a contract by Stoke. Boenisch told kreiszeitung.de that his new deal with Stoke City rejected left him "bewildered".
Read more about this topic: Sebastian Boenisch, Club Career