The Serbian is second top scorer in this season's competition with five strikes, two of which came against the Hoops last week.
Radovic scored Legia's stoppage-time equaliser against St Pat's in the previous round before banging in another double in Dublin as his side stormed to a 5-1 victory.
That's a warning to Celtic that Henning Berg's side are even more dangerous away from their pulsating Pepsi Arena. And, with a large Polish crowd expected to be behind them at Murrayfield tomorrow, Radovic is aiming to finish off the job against the Hoops.
The 30-year-old has Kazimierz Deyna's club record of 17 goals in Europe in his sights. Radovic said: "That statistic means a lot to me as it is not easy to score in Europe. I said a while back Legia would be in the Champions League within two or three years.
"Many fans in Poland laughed at me for that since Poland has waited 18 years for a Champions League Group Stage contender. Now my prediction may be coming true."
Former Celtic defender Dariusz Wdowczyk has warned Legia are driven by the Serbian attacking midfielder,.
"It's nice to hear that from Wdowczyk as he was the coach who brought me to Legia from Partizan in 2006," said said the man who will fly into Scotland relishing the prospect of lining up once again against a side which appears to bring the best out of him.
"Celtic are a lucky team for me as my first game for Legia was a friendly against them and we won 1-0," he told Uefa.com
"And the first leg this time was one of my best performances for Legia."