Top-seed overcomes sluggish start to beat Fernando Verdasco in first round of German ATP event.
Australian completes a tumultuous fortnight to successfully defend his title at the Claro Open in Bogota.
Troubled Aussie's Claro Open title defence on track after easy 6-1 6-4 win over Japan's Tatsuma Ito in Colombia.
The big four of world tennis all confirmed for the year's final major - but all the talk set to fall on star Serena Williams.
Tennis power couple Maria Sharapova and Grigor Dimitrov have split after a three-year relationship.