Both players have requested a trade from the Blues, with difficult negotiations looming.
“Let’s make it very, very clear that he’s a contracted player so we’ll be fighting tooth-and-nail for the best possible pick for Chris, because he is a quality player,” McKay said.
“We want a first-round pick. Richmond are baulking at that by the sound of it, but that’s just all part of the negotiation process.”
McKay said the club also wants a first round pick for Henderson.
“We think we can get a first-round pick; we’re confident we’ll get something done there,” he said.
“We’re in discussions with Geelong and Geelong haven’t indicated to us they won’t have a first-round pick available to us.”