The 29-year-old striker joined Kerala Blasters FC from Croatian top division Club HNK Hajduk Split.

Dimitrios who plays a striker started his youth career with Greek side Atromitos Piraeus and in 2009, joined the Olympiacos youth squad.

His impressive performances in the U19 league and Youth Champions League later earned him a senior team contract with the club. Between 2012 and 2014, he was loaned out to several Greek sides like Panionios Athens, Aris Thessaloniki, and Ergotelis FC, scoring a total of 14 goals from 49 games before returning back to Olympiacos where he added another 4 goals from 17 appearances.

In what would turn out to be a fresh and long chapter of his career, in 2015, Diamantakos went on loan to German Bundesliga 2nd Division side Karlsruher SC before making a permanent switch to the German club the following summer.

This was the beginning of a 6-year stint in Germany, where he also played for VFL Bochum and FC St. Pauli, during which he recorded 34 goals & 8 assists in over 100 appearances.

In the summer of July 2020, he signed for Croatian top division side Hajduk Split on a three-year contract and has made over 30 appearances for the club.

Dimitrios has represented Greece at all youth levels, scoring 19 goals in 46 matches. He was the runner-up at the European U19 Championship as well as the 2nd top scorer of the tournament.

Diamantakos has also played 5 times for the Greece National Team under former Premier League winning coach Claudio Ranieri.

Commenting on the Blaster’s last foreign signing of the summer Karolis Skinkys said, “I would like to invite all Kerals fans to congratulate Dimitrios in the best possible way.”