Radonjic scored 39 goals and 13 assists in 121 matches in Croatia.
The shorthanded German coach had to field several youngsters like 18-year-old league debutants Kays Ruiz-Atil and Arnaud Kalimuendo and 20-year-old goalkeeper Marcin Bulka in the starting line-up in Wednesday's match.
Elsewhere, Mainz survived a scare against fourth division club Havelse and booked their berth for the next round.
The 29-year-old Italian international is the first newcomer at Parc des Princess during this transfer window, which will be a relief for Thomas Tuchel's side who are severly effected by the coronavirus pandemic as seven players in the first team squad, including Neymar, Kylian Mbappe and Mauro Icardi, had tested positive recently.
As a result, the game ended with eight men from PSG on the field, while Marseille had nine.
The 25-year-old Slovak owns a lifetime best mark of 17.09m set last year in Wuhan, China. Enditem
Chemnitzer FC took the reins and disrupted Hoffenheim's build-up work in the opening stages, forcing Hoffenheim goalkeeper Oliver Baumann into action twice with early chances.
Alves almost added his second in the 61st minute, but his powerful shot was denied by the crossbar.
Jiangxi dominated the game at the beginning as Andy Russel put the newly-promoted side ahead in the 10th minute through a close-range header.
PARIS, Sept. 11 (Xinhua) -- Paris Saint-Germain forward Neymar on Friday declared that he was "super happy" to return to training which implied that he has recovered from coronavirus and moved out of isolation.
Alex Teixeira (R) of Jiangsu Suning breaks through during the 11th round match between Jiangsu Suning and Guangzhou R&F at the postponed 2020 season Chinese Football Association Super League (CSL) Dalian Division in Dalian, northeast China's Liaoning Province, Sept. 13, 2020. (Xinhua/Long Lei)