In one of the most heartwarming stories you will ever hear, Borussia Dortmund striker Sebastien Haller scored a hat-trick in his first goals on his return to action.

The former West Ham striker was on fire last season for Ajax, scoring 34 goals in all competitions, including 11 in the Champions League, earning him a move to Borussia Dortmund in the summer.

However, almost immediately after his £28 million move to the German side, Sebastien Haller was diagnosed with testicular cancer, after a tumour was found by the club’s doctors.

Since the diagnosis, Sebastien Haller has undergone two surgeries and chemotherapy. Remarkably, he was able to return to training earlier this month, just six months after his diagnosis.

The 28-year-old made his return to the pitch in Borussia Dortmund’s 5-1 friendly win over Fortuna Düsseldorf, replacing Youssoufa Moukoko in the 74th minute.

Today, Sebastien Haller was given more minutes, coming on in the 61st minute against Basel.

If Dortmund fans were concerned that he may bes rusty on his return to action, he quickly put aside those worries with an incredible seven minute hat-trick against Swiss side Basel.