Sheffield fighter Brook, 28, had hoped to agree a lucrative domestic showdown with Khan at Wembley but has been left disappointed with the Bolton man instead opting to travel to take on Algieri in his home town of New York on May 30.
Brook suffered a leg injury from a knife attack in Tenerife last September but returned to the ring on March 28 and made an emphatic first defence of his belt – halting Jo Jo Dan in four rounds before calling out Khan in the post-fight interview.
The pair traded insults in the following days and both fighters agreed to a ‘winner takes all’ financial scenario but promoter Eddie Hearn was quick to cast doubt over Khan’s intentions and his suspicions were justified when Khan confirmed a clash with Algieri on Thursday.
Brook told BBC radio of the decision: “If someone said to me you can get five million quid, a world title, fight at??Wembley with a fight that every fan wants to see, it’s a no-brainer for me.
“He’s fighting Algieri who didn’t win a round against Manny Pacquiao, a??feather puncher, not a big puncher. It doesn’t make sense to me. I’m world??champion, I’m calling him out, we want the fight, there’s a word title and a??bagful of money and it doesn’t make sense that he’s fighting this guy who’s??bringing nothing to the table.
“He’s said he’ll fight me before but when it comes to it, I don’t get why he??doesn’t want to fight me. Yes (I feel frustrated), wherever I go it’s always??Amir Khan, when are you going to fight him? He’s delicate around the whiskers,??he knows I’m a big strong welterweight and he knows I’m coming for that chin of??his.”
Khan has championed his opponent’s credentials, stating on Thursday:??”He has fought decent opponents, beaten decent opponents, and just fell short??against Manny Pacquiao, which is an A star opponent.”
Brook and Khan are both thought to be chasing a clash with the winner of the Floyd Mayweather Jr v Manny Pacquiao bout on May 2.