Here is what Roger Federer said after winning Stuttgart 2018 :
"I played very well throughout the tournament, it is a great comeback for me. I am so happy to have won," said Federer.
"I was hoping to play a couple matches here but I have played four and won them all. The last few have been very good.
"I hope I keep it up at Halle and Wimbledon. It will give me a boost as well being back at world number one."