Finnish forward Mikko Rantanen, who fell into the Avalanche's open arms with the No. 10 pick at the NHL draft in June, appears to have the size, skill and compete level to make his big-league debut at age 18.

That summer-long speculation will become a full-fledged science project Monday when the Avs begin a three-day rookie camp at their Centennial headquarters.

Rantanen, 6-foot-4 and 210 pounds, was among a handful of the 211 players in his draft class to be tendered an entry-level NHL contract, and he signed a maximum deal of $925,000 plus bonuses in July.

"It was a big honor. Now I just have to show them I'm worth the signing, and do everything I can to make the lineup," Rantanen said Sunday after rookie physicals and testing at the Pepsi Center.

Does he stay or does he go? Rantanen's three destination options are the Avalanche, the American Hockey League's San Antonio Rampage or returning to TPS Turku of the Finnish pro league. He is not eligible to play juniors because he's already a pro, having joined TPS Turku in 2012 at age 16.

"They have not talked much (about it)," Rantanen said of the Avs' expectations. "They basically said, 'Let's see how the camp goes,' and of course there are big exhibition games to come. There has not been big talk yet."

The Avalanche is no stranger to putting 18-year-olds in its lineup. In comparison — and Colorado has a handful — Rantanen seems just as equipped to make the direct jump from the draft to the big leagues as Matt Duchene and Ryan O'Reilly in 2009, Gabe Landeskog in 2011 and Nathan MacKinnon in 2013.