CHESTER, Pa. - When the Union first traded for CJ Sapong ahead of the 2015 season, they knew they were getting a promising young attacking player.
What may have been less expected was Sapong developing into one of the top American strikers, a member of the U.S national team rotation and a foundational player that makes the Union's entire system go.
So with Sapong's contract set to expire at the end of the 2018 campaign, the Union knew they had to make sure to lock him up - which they did just one game into the season, signing him Wednesday to a new deal that runs through 2019 with a club option for 2020.
"I hope he continues to progress as a center forward," Union sporting director Earnie Stewart told reporters from the club's training complex Wednesday. "I think CJ is a person that, [with] the way he takes care of his body and the professional that he is, has a long future in soccer. And he's still growing as a soccer player."
At 29, Sapong might not be considered young anymore. But it's easy to make the case that his best soccer is still in front of him, considering he's coming off a breakout 16-goal season - the first time in his career he eclipsed double digits - and is set up for even more success this year with the offseason additions of playmakers Borek Dockal and David Accam.
The combination of Dockal's vision behind him with the speed of Accam and Fafa Picault on either side of him has Sapong as excited as inking a new deal.
"That gives me space to just chill in the box and eat when I can," he said. "I find it hard to believe we'll be kept off the scoresheet too many games this year."
After opening his account in Philly's season-opening 2-0 win over the Revolution on March 3, Sapong will look to find the back of the net again when the Union return to the field Saturday vs. Columbus at Talen Energy Stadium.
And putting all contract negotiations behind him should only provide further motivation to a player who can now rest easy that Philadelphia will be his home for years to come.
"He's a guy who's done everything for the badge, and it's been a pleasure to work with him and watch him grow and take his game to another level," Union manager Jim Curtin said. "I'm looking forward to working with him for the next few years."
Currently in his eighth MLS season, Sapong said he hopes to, at the least, hit double-digits in goals every year while continuing to do the dirty work and hold-up play that Curtin loves - and has endeared him to Philly fans.
"I owe a lot to Philadelphia," Sapong said, "and how it's transformed me as a person and a player."