Both Sifan Hassan and Letsile Tebogo won gold at the Paris Olympics.
Ace Indian javelin throw athlete Chopra came in second with a best attempt of 87.86m on the day, behind Anderson Peters' effort of 87.87m.
Two of the Bengal-based iSL football clubs, East Bengal FC and Mohammedan SC, faced disappointing defeat on their Saturday fixtures, failing to score any comeback goals.
Retegui claimed his 12th league goal of the campaign after just four minutes for the visitors before Ederson and Ademola Lookman scored to send Atalanta above Inter, who hammered Verona
PV Vishnu and Jeakson Singh struck as the Torchbearers capitalized on their momentum coming into the game to pick up a 2-0 win over Chennaiyin FC.