"He achieved over 1,000 points and 150 appearances for Keighley Cougars and he will be sorely missed.
"He sadly passed away today at the age of 29, leaving his five-month-old twins and wife and family.
"The family, friends and team-mates of Danny are currently, and will continue to be, supported by the RFL Benevolent Fund and Sporting Chance.
"We would ask that the privacy of the Jones family, players and Keighley Cougars staff be respected." Jones was taken off after only four minutes of the match at the New River Stadium on White Hart Lane after apparently complaining of feeling unwell.
Jones, a Wales international who was 29, collapsed after being replaced early in the match and was treated by the match doctor and paramedics at the ground before being taken to the Royal Free Hospital.
Despite extensive efforts to resuscitate him, Jones passed away at the hospital.
Keighley issued a statement saying: "Danny was much loved and highly respected by all at the club and in rugby league.
"We sent a number of resources, including London's Air Ambulance and two ambulance crews to the scene.
"The patient - a man - was in cardiac arrest." Jones, who was in his second spell with Keighley after also playing for Halifax, made his Wales debut against Italy in 2010 and won the last of his 12 caps in a World Cup group match against Cook Islands in Neath in November 2013.