sport news AFL stars rocked by shock death of Adelaide personal trainer Jason Januszke on ... trends now A well-known personal trainer who worked closely with some of AFL's biggest stars has died doing what he loved as his shattered wife prepares to raise two boys on her own. Port Adelaide and Adelaide Crows players have led the outpouring of tributes following the sudden death of Jason Januszke, 43, who went into cardiac arrest on his daily run along the Mount Lofty hiking trail last Friday and couldn't be revived. The much-loved trainer owned a gym in Adelaide and worked with many players from both AFL clubs, which are crosstown rivals. Mr Januszke leaves behind young sons, Tom, 6, and Jack, 4 and shattered wife Jess, who broke her silence the day after his death. Jason Januszke (pictured with his family) was on his daily run when his life was cut short Many Port Adelaide Power players wore black armbands for Saturday's clash against Geelong 'It is with a very broken heart that I share with you the terribly sad news that tragically my darling husband Jase passed away suddenly … while doing something he loved, running Mt Lofty,' her gut-wrenching post read. 'Thank you for all the messages of love and support over the last 24 hours, I will be wrapping my arms around our two beautiful boys as we try to make sense of a life without him. The couple recently celebrated their seventh wedding anniversary . Many Power and Crows players wore black armbands in Mr Januszke's honour during their respective matches last weekend. Some regarded him a close mate. 'Jase was more than a training partner… Energetic, driven, generous and selfless he made those in his presence the best form of themselves,' Port Adelaide captain Tom Jonas told The Advertiser. 'Most of all he was a devoted husband and the proudest father, always recounting Tom and Jack's most recent feats with a smile on his face.' Wife Jess (pictured with Jason) is now trying to make sense of a life without her partner The popular personal trainer was adored by his two sons Jack (left) and Tom (right) Crows star Taylor Walker added: 'A smile was always on his face because he loved what he did and he loved his family and mates. 'He helped me in a time when I was struggling. Jase, you will never understand what that meant to me and I’ll never be able to tell you. You touched so many people in so many ways. Mr Januszke owned Inspire Health & Fitness Studio, which posted a heartbreaking tribute on Tuesday. 'It is with the heaviest of hearts that we pay our respect to the man behind Inspire Personal Training,' the gym wrote. 'Jason was the backbone of this community. Whether you'd know him for years, or days, he was always there offering a shoulder to lean on or an ear to vent to. 'Jason filled the room every morning with excitement and joy that only he could bring, and we will never be able to replace that. 'We cannot even begin to imagine this place or life without him, but will strive every day to continue the legacy he has left behind by living how he would have wanted. Jess and Jason Januszke (pictured) recently celebrated their seventh wedding anniversary Many Adelaide Crows players (pictured) also wore black armbands on Saturday night Mr Januszke also juggled business, training and family commitments with working as a security guard for several Adelaide nightclubs. Friends have rallied around his devastated family by setting up an online fundraiser, which has already raised almost $100,000. The aim is to help make life easier for Jess and her boys in the coming months by offering cleaning, gardening and babysitting services and helping with groceries. 'Many wonderful people touched by Jason’s incredible personality have reached out and asked how they can support Jess and her beautiful boys Tom and Jack who now find themselves without a father,' the page states. The personal trainer leaves behind a devastated young family following his sudden death Inspire Health & Fitness Studio has paid tribute to owner Jason Januzske (second right) All rights reserved for this news site (dailymail) and under his responsibility