Sacha Kljestan has claimed that Inter Miami be thriving without Lionel Messi having won six of their last seven games in MLS. The Herons have enjoyed quite the summer without their club captain, who won the Copa America with Argentina but ended the tournament injured after twisting his ankle, with Messi showing up at Chase Stadium on Saturday in a protective boot. With Luis Suarez and Matias Rojas back, though, Inter Miami have more than enough firepower to thrive in MLS, which is exactly what’s happened this summer, even with the Herons suffering a club-record 6-1 loss to FC Cincinnati. And K…