Two time ESWC Dota 2 champion Natus Vincere has declined the direct invitation to defend their title as reigning champions for the said event. Na'Vi officially states that they will instead be focusing their efforts on practicing for the rest of the tournaments in the upcoming winter season, namely EMS One, MLG Columbus and Dreamhack Winter 2013.

Europe and America are getting ready for the ESWC 2013 qualifiers in DotA2. While most of the CIS-based teams have already claimed their spots in the upcoming event, the status of the two times ESWC champions, team Natus Vincere, [was] still unknown.

The main roster that participated during The International 3 will pressumably be the one facing off against other teams in the coming winter season tournaments, hence the need to focus on practice. The team had been using a slightly different line-up in the recent tournaments with Puppey missing Techlabs, XBOCT going on a "suspension" of sorts for a week due to a post he made on his social page, and Funn1k going on vacation.

Source: Natus Vincere and ESWC 2013