The Twins have released struggling right-hander Jason Marquis. Marquis made just seven starts with Minnesota, which will soon use their ninth starting pitcher of 2012. The team is trying to trade Marquis and he is unlikely to be sent to Triple-A Rochester, an assignment the 13-year veteran has the right to refuse. If no deal is reached in 10 days, Marquis would be released. The Twins signed him for $3 million this season.