Tomic loses at Queen's as dad watches on John Tomic's surprise appearance caught the attention of most at Queen's Club on Tuesday but apparently not his son Bernard during a first-round loss. "I didn't see him, to be honest," Bernard said after losing 6-4 6-7 (4-7) 7-6 (7-4) to German Benjamin Becker in front of his father and coach. I didn't look at anything. I wasn't looking anywhere. Funny you spotted him and I didn't. Well, that's interesting. Tomic Sr sat in the second row during the match after being allowed by officials to attend as a spectator, despite the suspension of his ATP tour credentials following an assault charge. A clearly-flustered Tomic Jr attempted post-match to play down the impact of having his dad and coach court-side again, after he was barred from attending the French Open in any capacity. I wasn't really looking. Wasn't really something I was focusing on," the world No.63 said. The 20-year-old also revealed several changes to his coaching and support staff, saying he'd brought in Eugenio Forchione, Ivan Dimitrijevic and Harry Skinner, but his father clearly remains in charge. Dressed in a blue jacket, a white cap and dark shades, John Tomic showed little emotion as his son battled hard but fell just short in a match that finished around 8pm local time after several rain delays. Bernard said he had only been able to recommence full training late last week due to a hamstring problem that forced him to retire during the first round at Roland Garros. However he did not feel the effects of the injury and considered it a strong hit-out to start the grass-court season, despite extending a run of first-round exits that stretches back to February. There were only three breaks of serve in a high-quality match with 105th-ranked Becker capitalising on a handful of Tomic mistakes in the deciding tie-break. John Tomic had not attended an event since his ATP credentials were suspended after being charged by Spanish police for allegedly assaulting his son's former hitting partner, Frenchman Thomas Drouet, during the Madrid Masters in May. John Tomic denies assault and the case has been adjourned until October. Tomic's father was told to stay away from Roland Garros a fortnight ago and security guards were issued instructions to bar him from entering. But, although Queen's officials upheld the ATP ban, they agreed to let him attend as a ticket holder on the proviso he agreed to behave himself. He was free to buy a ticket and he did so. No problems were reported," tournament officials said in a statement. Bernard Tomic is scheduled to team up with Lleyton Hewitt in doubles at Queen's this week before turning his attention to the event at Eastbourne next week. It's not clear if his father will attend there while Wimbledon officials have reportedly said he will not be allowed to attend the grand slam in any capacity. Australian Sam Groth lost 6-7 (7-9) 6-3 6-2 to Czech 12th seed Lukas Rosol on Tuesday while Hewitt's second-round clash with Bulgarian 10th seed Grigor Dimitrov was postponed until Wednesday due to the rain. Also on Tuesday, former US Open champion Juan Martin del Potro mounted an impressive fightback as he defeated Belgian veteran Xavier Malisse 7-6 (7-5) 1-6 7-5. Top seed Andy Murray opens his campaign on Wednesday.