Gallery: Davis Cup semifinals (Day 1)

The opening day of Davis Cup semifinal action saw both ties left perfectly poised. Australia produced a fightback to level with Belgium 1-1, while France overcame a surprise defeat to go into Day Two on an even keel with Serbia. You can read all about it here, or simply check out the best photos from today.

: Nick Kyrgios produced an exceptional fightback to beat Steve Darcis 6-3 4-6 6-7(5) 6-1 6-2. Photo: Getty Images

: After surrendering the first set, Darcis took the next two before the Kyrgios fightback began. Photo: Getty Images

: Kyrgios both wowed and frustrated the home fans with another mercurial display. Photo: Getty Images

: David Goffin battled back to down John Millman 6-7(4) 6-4 6-3 7-5. Photo: Getty Images

: John Millman started strong against Goffin, but the match turned at 4-4 in the second set. Photo: Getty Images

: Goffin struggled in the opening set, but after saving multiple break points at 4-4 in the second the momentum swung in his favour. Photo: Getty Images

: Lucas Pouille hit 70 unforced errors as he lost the opening rubber of France’s tie against Serbia. Photo: Getty Images

: Jo-Wilfried Tsonga fought back to level the tie for France, beating Laslo Djere 7-6(2) 6-3 6-3. Photo: Getty Images

: Although France were expected to have it easy against Serbia, after the first day of action the tie is level at 1-1. Photo: Getty Images