Back 10:00 – Monday 23 July, 2018 More Add calendar Add as favourite Hamburg – Day OneATP • Tennis Bet at Bet36518+ Begambleaware.org. Aired onSky Sports ArenaNow Best Odds Paid Links Day one of the German Tennis Championships from the Rothenbaum Tennis Center in Hamburg. Roger Federer and Rafael Nadal are both former champions of this event.