Carlton star Harry McKay is reportedly being aggressively targeted by rival clubs, according to AFL great Garry Lyon.

The Demons legend said on SEN radio this morning that rivals are coming for the key forward "in a big, big way".

McKay is out-of-contract at the end of the season and set to command a big pay rise amid his breakout 2021 campaign, currently leading the Coleman Medal race with 30 goals to his name.

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AFL Rd 7 - Essendon v Carlton
MELBOURNE, AUSTRALIA - MAY 02: Harry McKay of the Blues celebrates a goal during the 2021 AFL Round 07 match between the Essendon Bombers and the Carlton Blues at the Melbourne Cricket Ground on May 02, 2021 in Melbourne, Australia. (Photo by Michael Willson/AFL Photos via Getty Images)

Speaking on SEN Breakfast, Lyon revealed that the 23-year old is highly sought after by opposition teams.

“This is what I know for a fact. Clubs are coming for Harry in a big, big way,” Lyon said.

“He’s as promising a big key forward as you’ve got in the competition right now, he’s out of contract and they’re coming for him.

“They’re going to ask the question and put a massive carrot in front of Harry McKay.

“Big Harry nearly singlehandedly lifted them to victory.”

SEN's Sam Edmund reported last week that Carlton's form in the next month will dictate McKay's contract, considered to be a matter of when, not if he re-signs.

Edmund said that the length of the deal is the sticking point in negotiations and official talks will begin over the next month.

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MELBOURNE, AUSTRALIA - APRIL 21: Harry McKay of the Blues celebrates during the 2018 AFL round five match between the Carlton Blues and the West Coast Eagles at the Melbourne Cricket Ground on April 21, 2018 in Melbourne, Australia. (Photo by Michael Willson/AFL Media/Getty Images)

McKay has been perviously linked to Essendon but it is unknown how far their pursuit of him went.

The former Pick 10 has played 56 AFL games for the Blues since making his senior debut in 2017.

As McKay does not yet qualify for free agency, he would need to be acquired via trade from rival clubs.

Carlton co-captain Patrick Cripps is also out-of-contract at the end of the season, however, McKay is arguably becoming the more valuable of the two signatures.

Coming off Sunday's loss to the Bulldogs at Marvel Stadium, the Blues now sit 13th on the ladder with a 3-5 record.