Louis Oosthuizen and Charl Schwartzel have been named in the field for the inaugural $25-million LIV Golf Invitational Series event in England next week.

The field is headlined by former world No 1 Dustin Johnson.

The American two-time Major champion said in February that he would stay with the PGA Tour, but in an apparent U-turn he was one of two top-20 ranked players listed in the field on the LIV Golf website for the 54-hole tournament starting on 9 June.

World No 20 and former Open champion Oosthuizen, former Masters champions Charl Schwartzel and Sergio Garcia, plus former US Open champions Graeme McDowell and Martin Kaymer are also in the field.

Opinion: Cash is king for Louis

Six-time major champion Phil Mickelson’s name was absent.

Mickelson, who became golf’s oldest Major champion when he won last year’s PGA at age 50, withdrew from defending his crown last month and hasn’t played since his controversial comments about LIV Golf and Saudi Arabia were made public in February.

The tournament at Centurion Club at St Albans, north of London, will have a purse of $25m, almost double that of any Major, with $4m going to the winner.

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There were 42 players listed in the 48-player field, with the field to be completed with players who qualify via an Asian Tour-sanctioned International Series tournament beginning on Thursday in London.

Former world No 1 Lee Westwood and Ryder Cup stalwart Ian Poulter have also signed up for the event.

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