The Englishman is almost certainly a non-starter for the Aberdeen Asset Management Scottish Open at Castle Stuart the week before the season’s third major in July.
Willett played in the first Scottish Open held at the Inverness venue in 2011, finishing 31st behind Luke Donald. He then skipped the second year there before returning in 2013 when he missed the cut.
The Yorkshireman also played at Royal Aberdeen the following year, finishing 11th behind Justin Rose, before missing out at Gullane last summer.
“Probably not,” replied Willett’s manager, Chubby Chandler, when asked if golf’s new superstar would be joining the likes of Mickelson and Henrik Stenson in this year’s event in the Highlands.
Willett’s next appearance will be in the Players’ Championship at Sawgrass in a month’s time before he returns to European soil for the Irish Open at The K Club then the BMW PGA Championship at Wentworth. His 2016 schedule will remain unchanged, according to Chandler, but next season Willett will play more in America.