Ivan Dodig and Austin Krajicek rallied from a set down Thursday at the US Open to keep alive their hopes for a second major title.

The second seeds, who won Roland Garros this year, defeated Spaniards Roberto Carballes Baena and Bernabe Zapata Miralles 5-7, 6-3, 6-4 in the opening round at Flushing Meadows after fending off eight of nine break points faced. The Croatian-American team will next face Stefanos Tsitsipas and Petros Tsitsipas after the Greek duo downed Miguel Angel Reyes-Varela and David Vega Hernandez 7-6(2), 6-4. 

Also in doubles action Thursday, top seeds Wesley Koolhof and Neal Skupski overcame home hopes Christopher Eubanks and Ben Shelton 7-5, 7-6(5). Wimbledon champions Koolhof and Skupski dropped just three points behind their first delivery.

[ATP APP]

Robert Galloway and Albano Olivetti sent John Isner and Jack Sock into retirement after defeating the Americans 6-2, 3-6, 7-6(3). 

Fourth seeds Marcelo Arevalo and Jean-Julien Rojer cruised past Denys Molchanov and David Pel 6-1, 6-2. Cincinnati champions Maximo Gonzalez and Andres Molteni downed Pedro Cachin and Juan Pablo Varillas 6-4, 6-2.