Joe Allen and Martin Kelly have followed the lead of several Liverpool teammates by supporting a campaign which is looking for donors to potentially save lives.
Brad Jones, Lucas Leiva and Daniel Agger have all given their backing to Anthony Nolan, the UK's leading blood cancer charity, who will host an event at Anfield on Monday, March 25.
On the day, volunteers will be invited to give a small saliva sample and join the Anthony Nolan bone marrow register.
Jones and his partner Dani Lawrence are supporting the event after the goalkeeper tragically lost his son Luca to Leukaemia in November 2011.
Lucas, Agger and the Liverpool FC Foundation are also behind the campaign to recruit donors and the club's Youth Ambassadors will be on hand at the Reds Lounge in the Centenary Stand from 3pm to 7pm on the day.
The charity has nearly 470,000 people on the register but can still only provide a suitable donor to around half of the people in need.
If you would like to join the register but are unable to make the event, then you can sign up online at www.anthonynolan.org/spit.