Pulis wanted to snap up the Senegalese striker from Hoffenheim in 2011 after discovering his extraordinary potential.
But Ba failed a medical and joined West Ham instead in a £7.1m deal.
Pulis said: “He’s a top, top player. He has gone his way and we have gone ours. He has had a great career and we’ve done brilliantly as well.
“We saw enormous potential in him and that has been vindicated. He has everything.”