#CitiOpen ... wait for it! On Saturday and Sunday, the main stadium was packed to watch Nadal ‘s public coached practice sessions. Turns out, Nadal from Spain has a huge excited fan base in D.C. On Sunday, the arena stadium was full of families and children holding hand painted “Go Nadal” signs and oversized tennis balls ready to thrust at him to autograph. He smiled at fans when he entered in his signature sleeveless workout shirt along with his coach Francisco Roig. He was relaxed on Sunday afternoon. He had missed his long morning workout because of heavy rain. But by 7 p.m. when he entered the stadium, the sky was blue, the temperature a low 80s with a slight breeze and the courts were dry. Nadal started off hitting the balls easy, while occasionally hitting a soft high ball into the stands for anyone to grab as a souvenir. The crowd watched intensely. The practice workout is the chance to see the players at their human vulnerable best. They are important for players to work out kinks and to get into a positive rhythm. They are usually structured, and the coach stands by to give insights. In a typical practice, there is one goal according to just about any tennis coach you might ask: consistency! Player are fed continual balls directly for an hour or two, while they practice all the shots. Each shot will be taken 40-50 times: forehands and backhands; down-the-lines and cross courts; overheads, volleys, approach shots and behind-the-backline long court shots and high lobs (often top spin). The aim is not only to return each shot over the net — high, low, top spin, slice. The basic goal — except for extreme angled cross courts shots — is to place the return within a foot or less of the back line. Every time. The majority of serves also need to be placed within a foot of the back service line in the middle of the court. In between practice and games, Nadal plans to explore D.C. “I love to be here in Washington because it is not only a new event for me, it’s a new city,” Nadal told reporters at a virtual news briefing on Sunday. According to social media, Nadal was spotted in Georgetown at "Fiola Mare" at the waterfront and on M St with cookie "Levain Bakery."