Francis, who has captained the side in the absence of Tommy Elphick, has played 24 times this campaign with 22 of those appearances coming in the Barclays Premier League.
The 30-year old started his career with Bradford City before moving to Sheffield United in 2004. Spells with Southend United and Charlton Athletic followed before his move to the south coast in 2011.
Francis has had a massive impact since moving to Vitality Stadium and was instrumental in the Cherries’ promotion to the Championship in 2012-2013, winning Players' Player of the Season that year.
In the club's first season in the second tier since 1990, Francis played all but 45 minutes of the season, before being named in the PFA Championship Team of the Year and helping the Cherries to the Premier League in 2014/15.