The South American has been struck with a groin problem, which narrows KK's options at the heart of defence.
And while this increases the chances of Abdoulaye Faye being involved in remaining fixtures, it also pushes Cacapa's former pal at Lyon, Lamine Diatta, up the pecking order after starring in the reserves against Man United on Monday.
But it's not just Cacapa, who knows about the capabilities of Diatta, but also Faye following his involvement with the player at international level for the Lions of Teranga.
Faye: "Maybe Lamine could play some part for us this season.
"The manager makes these decisions and nobody else.
"But he's a good player and a very good friend of mine who wouldn't let anybody down. He's very strong in the air and a big character - but we'll have to wait and see."