Billy Vunipola had a yellow card upgraded to red against Ireland and is likely to receive a three-week ban.

Source: https://www.theguardian.com/sport/2023/aug/20/england-must-change-course-or-they-are-heading-for-disaster-at-world-cup

Heavy defeats by Ireland and Scotland have placed Wales in wooden spoon contention, but Vunipola believes that against they will be driven by their sense of grievance and the prospect of humbling their fiercest rivals.

Source: https://www.independent.co.uk/sport/mako-vunipola-principality-stadium-wales-england-guinness-b2284754.html

The wing Sean Maitland finished with two of his side’s five tries, Farrell kicked immaculately off the tee and the absence of Billy Vunipola made no obvious difference.

Source: https://www.theguardian.com/sport/2023/may/13/saracens-northampton-premiership-semi-final-match-report

Vunipola is the squad’s only specialist number eight while Farrell is its captain, talisman and goalkicker, making the duo influential personnel who Steve Borthwick can not afford to lose.

Source: https://www.heraldscotland.com/sport/23736151.england-learn-fate-billy-vunipola-owen-farrell-tuesday/?ref=rss