There will be another returning Knick and a new veteran center at the training camp.

Both Matt Ryan, 28, who played 19 games for the Knicks last season, and Alex Len, 32, who spent most of the last four seasons with the Kings, agreed to deals with New York, The Post has learned.

They're now among several Knicks on non-guaranteed contracts competing for roster spots in training camp, which kicks off next week at the practice facility in Tarrytown.

As previously reported, the Knicks signed three veterans to non-guaranteed deals -- Malcolm Brogdon, Landry Shamet and Garrison Mathews -- who are considered the top candidates to make the senior squad.

As it stands, the Knicks only hold the cap space to keep one veteran on a guaranteed deal. But people around the league believe they'll free up another slot with a trade, and New York also holds three two-way contracts available.

Brogdon and Shamet are considered frontrunners for final roster spots.

The Knicks also signed former Nets forward Tosan Evbuomwan to a training camp deal, a source confirmed. He's expected to compete for one of the two-way contracts, which are reserved for young players who spend most of the season in the G League.

Neither Ryan nor Len are eligible for a two-way contract because they've been in the league for too long. Last season, Ryan, who grew up in Westchester County and attended Iona Prep, joined the Knicks in early November and was briefly part of Tom Thibodeau's rotation.

He was waived in March and just re-signed.

Len, 32, is familiar to new Knicks coach Mike Brown, who coached the former fifth overall pick for three seasons in Sacramento.

The Knicks can bring as many as 21 players into training camp and they're committed to at least 20. They've also worked out multiple free agents at the facility in Tarrytown, including guard Dennis Smith Jr., and forward Trey Jemison III, as first reported by The Post.

Jemison III is still being considered for a training camp spot, a source said, but hadn't signed a deal as of Tuesday morning.

Knicks sign Matt Ryan, Alex Len to compete for roster spots