Trained at FC Barcelona, Keita Baldé joined Lazio in Rome in 2012 and made his pro debut there. Scorer of 26 goals in 110 appearances with the Roman club from 2013 to 2017, he also became a Senegalese international in 2016 before joining AS Monaco in August 2017. Keita Baldé played 23 games and scored 8 times in the red and white jersey in 2017-2018, before making the being loaned out to Inter Milan the following season (24 games, 5 goals), then returning to AS Monaco in the summer of 2019.