When asked about Benn, Brook told iFL TV: "Disgraceful. He’s turned the boxing world upside down. It brings a negative light on boxing.

"To see that happen with Conor Benn… He needs to explain how that’s ended up in his system, bottom line. We’re waiting for this statement."

SunSport understands UK Anti-Doping will launch a formal probe into Benn's failed test.

Brook, who retired in May after beating Amir Khan earlier in the year, also teased a potential bout with Eubank Jr.

The Sheffield star admitted a showdown with Eubank Jr, 33, "does excite" him, but he will only lace up his gloves again if a fight makes sense financially.

https://www.thesun.co.uk/sport/20094...ris-eubank-jr/