Bernard Tomic and Nick Kyrgios could miss out on representing Australia at the Olympic Games in Rio if their behaviour on and off the tennis court does not improve. Both players have been put on notice by Australian chef de mission Kitty Chiller after Tomic drew heavy criticism following his exit from the Madrid Open when, on match point against Fabio Fognini, he held the racquet by the strings and did not offer a return to the Italians serve.Asked about the incident by the Gold Coast Bulletin, the world No 22 responded: I dont care about that match point - would you care if you were 23 and worth over $10m? Tomic effectively gave up match point against Fabio Fognini by attempting to return the ball with his rackets handle After the Australian Olympic Committees AGM, Chiller said: I think it was appalling behaviour. It goes against every value that all the Olympians live by, it goes against everything that weve been trying to build in this team.I would not want to see any of our Olympic team members behave in that way.Chiller said both Tomic and Kyrgios, who has a history of verbally abusing opponents, umpires and fans, were just two of the potential Rio Games athletes who were being monitored for their behaviour. Every athlete is under the microscope now, she added. Theres a few athletes that are on watch and those two names are among them.Tomic has been accused of tanking, or failing to try his best, in the past including in a loss to Andy Roddick at the 2012 US Open. Chef de Mission of the Australian Olympic Team for the 2016 Rio Olympic Games Kitty Chiller has warned Tomic and Kyrgios His 28-minute loss to Jarkko Nieminen in Miami in 2014 remains the quickest ever on the ATP Tour, while he was also involved in a spat with Davis Cup team-mate Kyrgios in March.Tennis Australia has until late June to nominate its team for Rio, with world No 21 Kyrgios and Tomic the countrys highest-ranked players and best chance for a medal. Tomic shows his emotion against Fabio Fognini But Chiller was keen to point out that Tennis Australia can only nominate players of good standing within their sport, while the AOC has the final say.Its their responsibility to determine whether its appropriate to nominate them, she said. If any athlete from any sport is nominated, we look at everything ... including behaviour, including the disrepute clause. Australias Nick Kyrgios holds his shirt in his mouth during his mens singles match against Czech Republics Tomas Berdych We have the ability to take that into consideration whether we proceed to select the nomination or not.Based on the last 48 hours, all I can comment on is that is not behaviour that I would want any team member in a team that Im responsible for to exhibit. Also See: Nadal sets up Murray tie Sky Live: Murray v Nadal WATCH: Kyrgios hotdog Tomic: So rich I dont care Shin-Soo Choo passed his physical with the Texas Rangers, clearing the way for the completion of the outfielders $130 million, seven-year deal. A person familiar with the situation told The Associated Press on Thursday night that Choo passed his physical and would be formally introduced in Texas on Friday. The person spoke on condition of anonymity because there was no official announcement from the team. The Rangers scheduled a press conference Friday afternoon. The said only that it was to "announce a major free agent signing" and provided no other details. Choos deal, worth about $18.6 million per season, is the third-highest this off-season. The deal was agreed upon last weekend, but was pending the completion of the physical. Second baseman Robinson Cano got $240 million over 10 years from Seattle and outfielder Jacoby Ellsbury, like Choo, a client of agent Scott Boras, signed a $153 million, seven-year contract with the New York Yankees. Choo started 150 games in centre field and had a .423 on-base percentage last season for Cincinnati in his only year with the Reds. He hit .285 with 21 homers and 20 stolen bases and scored 107 runs as their primary leadoff hitter.dddddddddddd The Rangers will likely use Choo in left field because they have Leonys Martin in centre and Alex Rios in right. And Choo could be their leadoff hitter. The deal comes a month after the Rangers acquired five-time All-Star first baseman Prince Fielder in a trade with Detroit for second baseman Ian Kinsler, their primary leadoff hitter last season. Both Fielder and Choo will be under contract through the 2020 season. The Rangers, who won their only AL pennants in 2010 and 2011, missed the playoffs for the first time in four years. Texas scored only 730 runs, its fewest in a non-strike season since 1992. Choos deal calls for salaries of $14 million in 2014 and 2015, $21 million in 2016 and 2017, and $20 million in each of the last three years of the deal. There are also performance bonuses and a limited no-trade clause. Choo has a .288 career batting average and .389 OBP with 104 home runs and 427 RBIs in 853 major league games for Seattle (2005-06), Cleveland (2006-12) and Cincinnati. The 31-year-old South Korean had at least 20 homers and 20 stolen bases three times, including last season. 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