Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Katie Boulter

Katie Boulter (U.K., in photo) defeated Aleksandra Krunic (Serbia) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)

Aleksandra Krunic

Aleksandra Krunic (Serbia, in photo) lost to Katie Boulter (U.K.) 6-2 6-0 in a Citi Open women's singles 1st round match at the William H.G. FitzGerald Tennis Stadium in Rock Creek Park in Washington, D.C. on Monday July 30, 2018. (Photo by Jeff Malet)