Westwood will be making his first appearance at the event, being held at the Dom Pedro Victoria Golf Course in Vilamoura between October 24 and 27, since winning what was his 30th professional title ten years ago.

In 2009, Westwood ended a two-year wait for a European Tour victory as he finished two strokes ahead of Francesco Molinari after carding his third six under par round of the tournament for a 23 under par total. The win sparked a rich vein of form which saw him win the Race to Dubai that same season and then become the first Englishman since Nick Faldo in 1994 to become World Number One the following year.

“I have some happy memories of Dom Pedro Victoria after winning there in 2009,” said Westwood, who had 26 top-ten finishes between his 2007 British Masters title and his Portugal Masters victory.

“There had been a few close calls between those two wins, so I was really pleased to get over the line in Portugal. A lot of players talk about how this tournament has gone from strength to strength over the last few years; I’m looking forward to coming back and seeing how the tournament has grown. It also gives me a great opportunity to tune-up ahead of my defence of the Nedbank Golf Challenge, so I’m excited for the week.”

“The Portugal Masters is an event I always look for when the schedule is released,” said Sullivan. “It’s a great event and it’s always nice to return to a course where you’ve won before. I always bring my family to the event as they love it as much as I do – and it never hurts to have some extra support whilst competing.

“This tournament gives us an opportunity to start building some momentum ahead of the final three events of the year. I really want to end the season strongly and this event provides the platform for that.”