Coetzee is expected to travel to Glasgow this week for a medical ahead of his move to the Hoops.
Speaking to STV after Celtic qualified for the Champions League group stage, Rodgers praised 20-year-old defender.
“He’s an outstanding young player that we think can help us, but it’s not complete yet,” said Rodgers.
“He’s obviously in his preseason as well, but it’s not just for the now, it’s for the longer term.
“He’s a player that can come straight in.
“He’s a full international player, and he’s got great qualities, good defensive qualities, and if we can get that done, then it’ll be a very good signing for us.”
Coetzee is expected to sign a three-year contract with Celtic.