He told TMZ Sports that Rivers will be back next season and predicts he will play about three more years.
"Yeah, Phil's coming back," Gordon said of the veteran quarterback, adding, "He gonna quit when he wanna quit."
According to Spotrac, Rivers will earn a $5 million roster bonus on March 16. He is signed through 2019, although there is a potential out in his contract following the 2018 season.
While he is 36 years old, the quarterback is still productive with 4,515 passing yards this past season. He earned his seventh Pro Bowl selection in 2017, his second in a row, while his 96.0 quarterback rating was his highest in the past four years.
With a lot of weapons around him like Gordon, Keenan Allen and Mike Williams, the Chargers offense could be even more dangerous in 2018.
On the other hand, the organization could start looking toward the future by drafting another quarterback.
"We know he’s not going to play 10 more years," general manager Tom Telesco said of Rivers on SiriusXM Radio, via Charean Williams of Pro Football Talk. "We have to have a plan moving forward...but that right moment, right guy, right time hasn’t quite gotten there yet for us."
It's not known exactly how long Rivers will remain with his current team, although Gordon seems to think there is some time before fans and the front office need to worry.