Top crypto analyst Benjamin Cowen is warning that one Ethereum (ETH) rival could plummet like Cardano (ADA) did last cycle. Cowen tells his 754,600 followers on social media platform X that Solana (SOL) is at risk of losing key support levels that could send it down to $10, a more than 50% decline from its current value. From about May 2019 to May 2020, Cardano fell from about $0.10 to $0.028, according to his chart. Solana is trading for $21.67 at time of writing, up 5.4% in the last 24 hours.