NASCAR driver Landon Cassill said Friday he decided to receive pay from a sponsor in cryptocurrency because that's "where the market is headed."The comments come amid news that Cassill's new sponsor, crypto broker Voyager, will pay the driver in a basket of cryptocurrency.In an interview with CNBC, Cassill expressed specific support for Litecoin, saying he believes in the crypto's long-term value.Cassill described a long history in crypto, starting with Dogecoin years ago. Since then, he said he's participated in all aspects of the crypto process, including mining and trading.Generally speaking, Cassill described his personal portfolio as "committed" to crypto.