By Frank Warren

NOT so long ago, the meeting of two unbeaten American world champions would have been a huge event.

But last weekend's clash between Devon Alexander and Timothy Bradley did not make much of an impact on the live gate.

Less than 4,000 tickets were sold for their fight in Michigan. In what should be a hot division, Amir Khan's last two fights in the States sold less than 8,000 tickets in total.

In comparison, seats are now hard to come by for Manny Pacquiao's showdown with Shane Mosley with less than 1,000 left, just days after they went on sale.

It's a shame events in Detroit slipped under the radar because Bradley emerged as world No 1 at light-welterweight - and the most likely opponent for Khan in the summer.

Bradley, who beat Junior Witter nearly three years ago, now holds the WBO and WBC world titles.

With Khan bringing the WBA title to the table, his fight with Bradley - if it goes ahead - should be a big one.

I say 'if' because Khan has to negotiate a routine defence in April. Picking the right opponent is essential because he needs to look good - but not get beaten.

He needs to stay out of trouble because I fancy him to beat Bradley.

I wrote to Khan and his team a year ago encouraging them to take the fight because I thought he would be too quick for the American. Nothing has changed to alter my opinion.

The only thing that worries me is the way Khan ground to a halt in the last three rounds against Marcos Maidana.

FORMER world champ Robin Reid is to return to action in the next round of Prizefighter.

I took Robin to Italy back in 1996 when he won the WBC super-middleweight title.

He's now 40, a long way from his prime. I don't know if it is money or pride persuading him to return.

But I'm really not sure that our great sport needs its former world champions to make comebacks like this one.

IT'S a big week coming up with some major domestic fights out to purse bids.

Among them is James DeGale's British super-middleweight title defence against Londoner George Groves.