England hooker James Roby will extend his career at St Helens to a 16th season after the Betfred Super League leaders confirmed they were taking up an option on his contract for 2019.
The 32-year-old has won every domestic title with his home-town club since making his debut as an 18-year-old in 2004 and recently took his total of appearances beyond 400.
Roby, who was named Steve Prescott Man of Steel in 2007, was appointed captain at the start of the 2017 campaign and helped them top the table at the halfway mark of the regular season.
"I'm really happy to stay at my home-town club," Roby said. "Although there is a long way to go this season, everything is going well and I'm looking forward to the rest of the year and next.
"I'm proud to have played at the Saints my whole career and I'm really looking forward to the future."
Roby recaptured some of the best form of his career following the arrival last summer of Australian coach Justin Holbrook and, after forcing his way back into the England team, enjoyed a successful World Cup where he took his number of international caps to 42.
"This was a very easy decision to make," Holbrook said. "As Captain, James is a leader within the group and quite simply one of the best players in Super League.
"He is an integral part of the club and the town. His experience, professionalism and leadership are second to none, as are the standards he sets week in week out.
"I can see him playing for a couple more years yet."