Bradford's Bobby Vanzie admitted to feeling bitterly disappointed after his successful Commonwealth lightweight title defence.

The 26-year-old retained his crown when Trinidad champion Joseph Charles quit during the sixth round of their fight at Manchester on Saturday.

Vanzie said: "It was most unsatisfactory. I felt totally frustrated afterwards because the last thing I needed was an opponent who just gave up in the middle of the fight.

"Being the consummate professional that I am I didn't want to take any chances but I knew he was going to quit from the fifth.

"I have to admit that my performance wasn't what I wanted either. I knew from the first round that Charles had little to offer and I kept looking for the one punch that would have taken him out instead of putting together the combinations and clusters of punches which would have looked more impressive.

"Obviously I am glad to have won and retained my title but I need more.

"I have to be tested and require tougher fights. The whole scenario of Charles coming in as a last minute substitute and the fight itself wasn't what I needed.

"He didn't offer a lot but my only consolation is the fact that I managed to force him to quit in six while a world champion like Cesar Bezan was taken the distance by him."

Vanzie was also unhappy about the timing of his fight which was part of the undercard for Michael Brodie's unsuccessful world title bid.

The arena was virtually empty with little atmosphere. Some members of Vanzie's travelling army of 100 supporters didn't arrive until after the second round had begun.

Charles, who had only won eight of his 14 bouts and had lost the last three, was no match for Vanzie who must now be fed a better pedigree of opponent if he is to progress.

It has to be hoped that all the speculation comes true concerning a possible fight for the WBO world title against Uzbekistan's Artur Gregorian in November on the undercard to Naseem Hamed's WBO world featherweight title defence against Isvan Kovacs.

Vanzie stunned the challenger with a left-right combination at the end of the first round and floored Charles with a clubbing right hook late on in the second.

Charles enjoyed some success with a couple of swinging left hooks in the third but Vanzie was back in control in the fourth, connecting with a classy left hook just before the bell.

Charles looked a touch weary as he emerged for the fifth and a two-handed assault from Vanzie soon saw the challenger taking a standing eight count.

A left to the body floored Charles early in the sixth and the fight was waved over after he stumbled to the ground for the fourth time soon after.

Vanzie had hardly been stretched and he is now vowing to take just a week's break from training before starting to build up for another fight.