A fourth consecutive knock-out victory would delight most boxers but heavyweight prospect Anthony Joshua was slightly disappointed with his display against Dorian Darch.

Joshua has followed up the first-round stoppage on his debut in October with three second-round knock-outs, the latest coming on Matchroom's show at the Motorpoint Arena in Cardiff on Saturday night.

The 24-year-old, who won Olympic gold at London 2012, struggled to land his jab in round one against Darch before a barrage of shots which probably would have ended the contest had it not been towards the end of the opening session.

The bout was stopped by referee Terry O'Connor 50 seconds into round two after a thunderous right hand which was soon followed by a lovely left hook.

However, Joshua said: "I rushed a few things and there is still a lot that I have got to work on.

"It's upsetting when you want to get in there and produce a spectacular performance and you come out with the feeling that it was an average performance.

"Every heavyweight can punch hard, but that's not the point of heavyweight boxing - who can hit the hardest. It's about who can hit the opponent and get hit less.

"But it's all about learning and I learned and came out in the second round and found my range a bit, that's when I started to land my shots a bit cleaner.

"I caught him with some good shots in the first round and I think that if it had gone on a bit longer, I would have got the stoppage then.

"It could sound a bit cocky, but I just want to improve that much. I want to be good, and if I've got any chance of doing well then it's about being spectacular. Why would I spend hours and hours in the gym to get it wrong or do mistakes out there?"

Joshua, who grew up in the Meriden Estate in Watford before moving to Golders Green, returns to action on March 1 in Glasgow.

Read an interview with Joshua here where the heavyweight prospect talks about his rise to Olympic gold and the importance of being a role model.