25-year-old Serbian centre-back Slobodan Rajkovic starred at the weekend as Borussia Dortmund suffered a defeat they will wish to forget.
They were humbled 3-0 away to a Hamburg side who had been sitting in the relegation zone ahead of the fixture, the worst possible preparation for their Champions League clash with Zenit St Petersburg in midweek.
Dortmund conceded a staggering late free-kick to Hacan Calhanoglu, with the defeat seeing them slip to 3rd in the Bundesliga and end the weekend 20 points behind leaders Bayern Munich.
The star performer for Hamburg was Slobodan Rajkovic, who was incredibly making his first start of the season, with injuries holding him back before now.
Rajkovic was signed by Chelsea at 16-years-old, but never played a competitive game for the club, loaned out to Dutch sides PSV, Twente, and Vitesse.
At the weekend he went head-to-head with Robert Lewandowski, the freescoring Pole who netted four times in one game past Jose Mourinho's Real Madrid last season.
As part of keeping a clean sheet for Hamburg, Rajkovic won a staggering 12 aerial duels, Lewandowski winning just one.
Rajkovic made 13 clearances, 3 interceptions and 2 tackles in a man-of-the-match display alongside Arsenal loanee Johan Djourou which will give the Blues hope for the rest of the season.
The centre-back is now 25-years-old, and will hope this is where his nightmare season picks up.
He never qualified for a work permit at Chelsea, eventually sold for €2 million to Hamburg where former Blues sporting director Frank Arnesen was working at the time.
A Serbian international of 13 caps, Rajkovic proved at the weekend his talent and why Chelsea saw fit to sign him in the first place. Now is the time for kick on, starting with helping Hamburg avoid relegation.
images: © Roger Gorączniak