Tennis ace Andre Agassi is hoping to make a new chain of Hungarian healthy fast-food delis a smash hit with East End hipsters.

The eight-time Grand Slam winner has served up a left-field move by fronting the new venture by Budapest-based health food specialist Update 1.

The company plans to open 50 franchised “low carb bistro delis” across the UK by 2019, starting with its debut on Walthamstow High Street next week. Four further delis are planned in the coming six months, including in Farringdon and Angel, followed by an online arm.

The delis include a bakery, organic coffee, gluten-free products and ranges of health foods, as well as a healthy fast food takeaway that will include low-fat pizzas and burgers.

Agassi, pictured, said the venture would help his ambition to assist in the fight against obesity. He added: “I have long believed that exercise, plus the right nutrition and diet, are essential to long-term mental and physical health.”

Agassi is fronting Update 1’s expansion push into new markets including the UK, Germany, Italy and Turkey.

The Hungarian firm floated in Budapest, valued at £15.8 million, last month. Sales rose 10% to £7.6 million last year.

Update 1 has a chain of 100 health food shops throughout Europe. It was founded in 2004 by colourful entrepreneur and self-styled ‘health king’ Norbi Ference Schobert.

He said: “Update 1 has been proven to help people lose weight without them needing to give up their favourite food items.”