Costa caused a storm at Chelsea last year when the Blues refused to sell him to Atletico Madrid that summer.
He effectively went on strike, staying back in his native Brazil and only returning to Europe to begin moving his family to Spain.
Costa eventually got his move back to former club Atletico when the January transfer window opened.
But 12 months on from his controversial Chelsea exit and Costa may be on the move again.
According to Tuttomercatoweb, Chinese side Tianjin Quanjian want to sign him.
And the Super League outfit will hope to learn from their mistakes last time they tried to snare Costa.
Chelsea had offers from Tianjin Quanjian for their star striker last year but refused to sell.
The snub frustrated Tianjin and it is claimed they will not be beaten this time.