Australian boxing legend Jeff Fenech has been hospitalised with heart problems, with his NRL star son-in-law Bradman Best revealing the family’s concern ahead of his Kangaroos debut.The four-weight world champion, 62, was admitted to Strathfield Private Hospital around 10 days ago after suffering severe fatigue, breathing difficulties and feeling unwell.Fenech has since had a blood clot removed from his wrist and undergone tests to investigate whether a potentially life-threatening staph infection has returned.A recurrence has not been confirmed.Best, who has a baby daughter with Fenech’s daughter Kayla, disclosed the hospital stay while discussing the boxing great’s influence on his career.The Newcastle centre is preparing to make his Australian Test debut against Fiji on Sunday, but took time to acknowledge Fenech’s health battle. Jeff Fenech, 62, has been hospitalised after suffering heart problems, fatigue and breathing difficulties Bradman Best paid tribute to his father-in-law ahead of his Australian Test debut Fenech has reportedly had a blood clot removed from his wrist and undergone tests for a possible recurrence of a serious infection‘Jeff has been massive for me, I just want to give a quick shout-out to him,’ Best said.‘He’s actually in hospital at the moment.‘I’m thinking of him. He’s tough, he’s always a fighter.’Best said Fenech had become an invaluable source of advice as he worked towards representing Australia.‘Jeff has done a lot for me in my career,’ he said.‘I was visiting him last week and he’s always giving me tips on what to do and how to be better.‘It’s special having a father-in-law like that who’s a four-time world champion.‘He’s an icon in Australia and it’s special having a bond like that with him.’ Tim Tszyu’s preparations for his world-title clash with Erislandy Lara have been disrupted by his trainer’s hospitalisation Fenech became one of Australia’s greatest boxers, winning world titles across four weight divisions during a career that earned him the nickname ‘The Marrickville Mauler’Asked whether Fenech’s condition was serious, Best remained hopeful.‘Yeah, he will be right. He’s always a fighter. He’s been in there with a few heart problems and stuff, but he’ll be good.’The hospitalisation has also interrupted Tim Tszyu’s preparations for his planned WBA middleweight world-title clash with Erislandy Lara.Fenech became Tszyu’s head trainer in July, helping guide him to a unanimous decision victory over American star Errol Spence Jr.Tszyu credited the veteran trainer with helping inspire that result, which set up his pursuit of a world championship in a second weight division.With Fenech sidelined, fellow trainer Basil Nassis has taken charge of Tszyu’s work in the gym.The Lara bout is expected to take place in Australia in November or December, according to the reports.Fenech hopes to recover in time to be involved, although the Telegraph reported he is unlikely to perform padwork during the build-up.The latest scare follows two major heart operations.In October 2019, Fenech underwent emergency open-heart surgery in Thailand while preparing Jack Brubaker for a fight against Tszyu.He needed another six-hour open-heart operation in 2024 during a serious infection.