 Complete the following phrase:  In the 2016 Western  Southern Open he defeated Federico Delbonis in the 1st round, in the 2nd round he beat Julien Benneteau and in the 3rd round he beat 7th seed Jo-Wilfried Tsonga, all this set up a tie with Dimitrov in the quarterfinal, which he lost in straight sets. Johnson defeated Evgeny Donskoy in the first round of the US Open after losing the first 2 sets. His run was ended in the second round by Juan Martín del Potro in straight sets, however. Johnson would lose in the first round of the 2016 China Open to Dimitrov and in the 