Buriram United (Thailand)
A year after Muangthong’s invincibles story, arch-rivals Buriram refused to be left in the dust and repeated the fear just one season later. Due to the suspension of Sisaket FC, each team had to play a total of 32 games, of which the Thunder Castle won 23 and drew 9. Buriram went on to win all of the domestic titles in 2013 including Kor Royal Cup, Thai Premier League, Thai FA Cup, and Thai League Cup under Spanish manager Alejandro Menéndez. In 2015 Brazilian Alexandre Gama repeated Menéndez’s achievements and takes the Thunder Castles record another invincibles season.
Johor Darul Ta’zim (Malaysia)
Financially backed by the Johor Sultanate, the Southern Tigers have become the dominant force in Malaysia since the 2014 season. Out of all of their titles in recent seasons, their most special one came during the 2016 season when they played 22 matches without a single loss, winning 18 of them. They also won the 2016 Malaysian FA Cup and kept ahold of the Piala Sumbangsih trophy after also winning it in 2015. Unfortunately, they couldn’t complete a quadruple that season because of their elimination in the group stage of the Malaysia Cup.
FC Istiklol (Tajikistan)
From 2010 until 2019, the Lions have only missed out on winning the Tajik League on two occasions. The side finished the season as unbeaten champions on a remarkable four occasions, in 2010, 2014, 2015 and 2017. Unfortunately, the side missed out on completing a remarkable treble in the last season, losing in the finals of both the Tajik Cup and the AFC Cup.