Alex Hales did not feature in Nottinghamshire’s match against Lancashire on Friday due to ‘personal reasons’.
On the club’s website, the county side stated: “Alex Hales has made himself unavailable for selection for personal reasons and no timetable has been set for his return to action.”
Earlier this week, Hales – who has represented England in 11 Tests, 70 Tests and 60 ODIs – was named in his side’s provisional 15-man squad for this summer’s Cricket World Cup, set to begin on May 30 when England take on South Africa at The Oval.
The Notts batsman was also named in England’s squads to face Ireland and Pakistan next month.
Notts ran out victors in the match against Lancashire, triumphing by 11 runs after setting the visitors a target of 418 at Trent Bridge. Joe Clarke top-scored for the home side with a 99-ball 139 before Australia’s James Pattinson took 5-61 to help Notts to a win in their first One-Day Cup fixture of 2019.