The 2. Liga (Slovakia) (2nd League), also known as MONACObet LIGA for sponsorship reasons, is the annual second tier football competition in Slovakia. Currently, the competition consists of 16 teams.
The league was formed as a second-tier league in Czechoslovakia. Before the dissolution of Czechoslovakia it consisted of 16 teams. Upon dissolution, six teams were promoted to the then newly formed Slovak First League. The league was expanded to 18 teams in 1996/97 season, but returned back to 16 in 2001/02 and reduced to 12 in 2006–07.[]
For 2014/15 and 2015/16 seasons the league became known as DOXXbet liga as part of a sponsorship agreement.[]
In February 2024, the league was renamed as MONACObet LIGA as a part of a two-and-half year partnership deal with an option to extend. The deal included a further undisclosed club grant worth over million €, allegedly exceeding any previous partnerships.