West Brom's Tyler Roberts scores winning penalty for Oxford United

Roberts, who is on loan at the Us until January, helped fire Michael Appleton's side into the third round of the competition after the match at Roots Hall finished 1-1.

It was a welcome win for Oxford, who had lost two shoot-outs in the group stage, including the longest one in the history of English football when Chelsea's academy team beat them over 34 spot kicks.

"I was just the lucky one to take the last penalty," Roberts told the Oxford Mail. "I was just concentrating on hitting the ball cleanly.

"I like to wait for the goalkeeper to make a move and then go the other way.

"There was pressure standing there watching and when it came to me I definitely felt it. It was a different experience."

The draw for round three takes place tomorrow (Thursday) at 11.30am.

Category One academy sides have been allowed into the Trophy for the first time this season, but the move has led to many supporters boycotting the competition.

Albion's under-23s were knocked out in the group stage, and only 271 fans turned up for their home match with Gillingham on November 8.

It is the lowest ever attendance in the Trophy since the competition was founded in 1983.