Skipper Sean Dillon has signed a two-year contract extension to tie him to Dundee United until May 2017.
The Irish defender moved to Tannadice from Shelbourne in January 2007 and has made close to 300 appearances.
"This club is a massive part of my life and the Dundee area is my family home," said the 31-year-old Dubliner.
"The support I receive from the United fans has always been excellent and I am proud to continue to wear the tangerine top for another two years."
If he completes this latest contract he will have served the club for 10 and a half years.
United manager Jackie McNamara said Dillon was "immensely valuable to the club".
He told the club website: "On field, Sean has a versatility which means I can call on him to cover a number of positions and in the dressing room and as an ambassador for the club he is the model professional and the ideal role model for our younger players.
"It is very rare in today's football world that a player commits 10 years to one club.
"His commitment to Dundee United is amazing and I believe he will continue to prove a valuable part of the squad for the foreseeable future."