The Red Bull racer was reportedly booed at some races last season when he won 13 of the 19 races.
According to News.com.au, Vettel had failed to complete a single lap in testing at the Bahrain circuit amid a host of other problems which Red Bull has faced this season during their testing sessions.
However, Ecclestone has said that loosing a Grand Prix  would make it more exciting for the fans as they are tired of watching the Formula One star win races, the report added.
Meanwhile, Vettel has blamed the new Renault engine for his unsuccessful testing sessions at Bahrain but Ecclestone refuted those claims saying that the same engines allowed him to win the championship for the last four years, the report added. (ANI )