Steve Johnson vs Dudi Sela prediction

Steve Johnson is not in a good form recently. He has been eliminated from 2 Major events and Wimbledon when he had 1.43 - 1.64-1.87 odds. As he is not in a good form on grass and hard court season is ahead, I am a bit suspicious that he really want this event on grass. Dudi Sela is interesting player. He mostly looks like tennis player who sometimes play on streets with friends. However, he had already gained some serious victories over big servers. He had beaten Karlovic yesterday at 3.06 odds, beaten Tomic at 3.58 odds. After his injury, his first event was Wimbledon where he was luckily match up with Nadal and lost 3-0, not surprisingly. Another noticeable victory was over Edmund at Indian Wells at 3.44 odds. When he is on day, he can handle good servers and odds not showing true value. I think we should expect long match or Sela will take at least 1 set.