During his first season at King Power Stadium, he made eight appearances for the Foxes, but in 2019/20, Söyüncü became a regular starter in Brendan Rodgers' first team. As well as scoring his first goal for City in a 2-0 win over Crystal Palace in November 2019, 'Çağs' starred in all but one of Leicester's Premier League fixtures before football's suspension due to COVID-19 in March 2020.
Not only did Söyüncü become a virtual ever-present for the Foxes, but the nature of his performances - typified by his immense strength and composure in possession - quickly established him among the Premier League's best defenders in 2019/20.
The following season, Söyüncü remained a key figure for Rodgers' men, adding another 32 appearances to his tally in all competitions, notably scoring a powerful header to seal a 2-1 win at Manchester United in May 2021 - the Club's first win at Old Trafford in 23 years.
Later that month, the Turk was also in commanding form for the Foxes as they defeated Chelsea 1-0 at Wembley Stadium to lift Leicester's first-ever Emirates FA Cup crown - Söyüncü's maiden major piece of silverware at King Power Stadium.
The 2021/22 was more challenging for the powerful centre-back, with defensive colleagues often being injured, but he still made 47 appearances for club and country. Leicester would end the season having reached the semi-finals of the UEFA Europa Conference League and finishing eighth in the league.
A full Turkey international, Söyüncü made his senior debut for his national side at just 19 years old against Sweden in March 2016 and has since become a regular for the Crescent-Stars.
Born in Izmir, Söyüncü began his career with his local side, Altınordu F.K. in the TFF First League, the second tier of the Turkish Football League. He made his professional debut in 2014 and appeared 34 times for the side over the following two seasons.
At Menemen Belediyespor, now Menemenspor, he was a prolific striker. At Bucaspor, he played just in front of the back line, and it was only at Gümüşorduspor, where one of his team-mates got injured, that he would drop into centre-back to replace him.
SC Freiburg, meanwhile, made their move for the centre-back shortly after he turned 19, making him the first player ever to make the move from Turkey’s second tier to Germany’s top flight. An impressive debut Bundesliga campaign followed in 2016/17 which saw Söyüncü earn 24 first team appearances as Freiburg finished seventh and qualified for the UEFA Europa League.
The following season, he played 30 times for Freiburg and scored his first Bundesliga goal in a 3-2 win over Hoffenheim. As Söyüncü established himself in the first team, the German side finished 15th in the league and reached the round of 16 of DFB-Pokal.
With over 40 caps to his name,, Söyüncü scored his first international goal with a late equaliser against Tunisia in June 2018. Now, the Turk is a regular presence in Rodgers' Leicester XI, alongside Jonny Evans and Wesley Fofana, and is quickly building a large fanbase both in his homeland and in England.