Chelsea’s transfer business over the previous few years has been something of a mixed bag. The positive incomings have been far outweighed by players arriving on inflated fees who quite simply haven’t produced the goods.

The likes of Romelu Lukaku, Hakim Ziyech and Alvaro Morata arrived in London to much hype and fanfare, yet for the large sums of money that they have cost Chelsea, they couldn’t fire the club to greater heights.

Indeed, some players who join Chelsea often struggle at the club before leaving and regaining their form elsewhere, with Timo Werner being a key example.

What has Timo Werner done since leaving Chelsea?

Considering Chelsea’s attacking options at the start of the campaign, it was a surprise when the club sold him back to RB Leipzig for £25m just two years after signing him from the same club, and it looked as though Thomas Tuchel was undergoing a rebuild at Stamford Bridge.

However, with the Blues’ centre-forwards scoring just four times all season, that move now looks even harder to explain, especially since his form has been superb since returning to Germany.

In the Bundesliga this term, the 26-year-old has scored five times in 14 matches while also creating three big chances, making 0.5 key passes per game and taking 2.3 shots per match, which suggests that he is getting back to his clinical best.

It is not only domestically that he is shining, with Werner performing well in the Champions League for Leipzig, scoring twice in six group stage matches including a goal against Real Madrid.

The 26-year-old also recorded an assist, created two big chances, made one key pass per match and had 1.7 shots per game in Europe, proving that he can excel on the biggest stage in club football and surely making Chelsea regret selling him last summer.

He is certainly living up to his “deadly” nature – as he was dubbed by talent scout Jacek Kulig in 2020 – and although he managed to score a credible 23 goals in 89 appearances for Chelsea, it clearly wasn’t enough to show Tuchel that he had a future at the club.

It could well have been different under Graham Potter. The Englishman has been forced to deploy Kai Havertz as a striker due to injury issues elsewhere, and it could have been the ideal chance for Werner to prove himslef and stake a claim to be the club’s main number nine.

Selling Werner can be considered another transfer blunder committed by the club in recent years.