Sky Sports pundit Andy Walker says its time for Celtic to part company with manager Ronny Deila following their 2-1 defeat to Aberdeen at Pittodrie. It was a miserable night for the Scottish champions, who have now suffered back-to-back defeats following their shock loss against Ross County in the Scottish League Cup semi-final last weekend.Celtics lead at the top of the Scottish Premiership was cut to three points as goals from Jonny Hayes and Simon Church earned Aberdeen a 2-1 victory and former player Walker says owner Dermot Desmond has a big decision to make over Deila, who claimed on Tuesday he has the boards backing. He told Sky Sports: I didnt see any reaction from the Celtic players today after the weekends defeat to Ross County.I didnt see any reaction during the game against Ross County and I didnt see any reaction when they went 2-0 down tonight and I think you can ignore what the Celtic board are saying.This is now a call for Dermot Desmond. If he has got his finger on the pulse of the Celtic support, who continually booed the players at the end of the game, then he will realise hes got a big decision to make. Ronny Deila admits Celtics 2-1 defeat to Aberdeen puts pressure on him Do you trust Ronny Deila to come up with the type of results that will not only get Celtic the title but a bit of success in Europe?If it was up to me I would change the manager tomorrow.Deila has been under pressure all season following his teams early exit from the Champions League against Malmo.Desmond has previously backed his manager, claiming the team is better than they were last season, but Walker says performances are not good enough for a team that has a huge financial advantage over their domestic rivals. Aberdeen are now just three points behind Deilas side He added: Celtic have a huge advantage in terms of resources and everything you want.How did they defend tonight? The amount of long balls that were played when Celtic were 2-0 down and they didnt go and compete for them.I know thats not down to the manager but the manager has to make the kind of changes and type of signings that can get Celtic success on the park and all of that is up for serious debate. Celtic captain Scott Brown battles with Jonny Hayes on Wednesday night Its not good enough and Celtic could well go on and secure the title but would you trust this manager to get you the type of results the Celtic supporters are looking for?I think if you have got your finger on the pulse of the Celtic support I think there is a growing number who dont buy into what Ronny Deila is continually saying.Theres no improvement, theres nothing special and theres no notable victories and I think as a Celtic manager that is what you have to come up with. Also See: Match report As it happened Table Live on Sky Air Max 270 React Black . 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Parker had 26 points and eight assists and San Antonio beat Toronto 112-99 Monday night. "We won that game because of Tony Parkers aggressiveness," Spurs coach Gregg Popovich said. "His juice; his aggression all night long. Whitewater churns into foam as double-ended paddles windmill one-person boats into position. The paddles go up in the air as the boats slide through red or green gates, then the furious wind milling begins again.For a sport that doesnt get the attention of some of the more well-known ones, whitewater canoe and kayak has plenty of action and drama.A few things to look for in whitewater canoe/kayak at the Rio Olympics next month:THE LOWDOWN: The four canoe/kayak slalom events will be held Aug. 7-11, with medals award the final three days. Men compete in single and double canoe, along with kayak. Women compete in kayak only. The races will take place at the Whitewater Stadium in Deodoro on a steep 250-meter course that has between 18 and 25 gates. Green gates are negotiated with the current, red against it. Paddlers are assessed a two-second penalty for hitting a gate and 50 seconds for missing one completely.EUROPEAN DOMINANCE: European countries have dominated the sport since its inception at the 1936 Berlin Olympics and show no signs of letting loose of their stranglehold. In mens canoe slalom (C1), European counties have won every medal but one since the 1992 Barcelona Games, when the sport was put back into the Olympic program after a 20-year absence. Europe has accounted for all but one medal in kayak (K1) and 16 of 18 medals in two-person canoe (C2) during that span. Women have had a little better chance breaking through the European stronghold, with paddlers from the U.S. and Australia combining for six of the 18 medals since Barcelona.AMERICAN MEN: The United States team has two paddlers with solid chances to earn medals in Rio. Kayaker Michal Smolen, who emigrated from Poland as a child, was unable to compete at the 2012 London Games due to questions about his citizenship, but should make a strong run to the podium this time around. Smolen earned bronze at the 2015 world championsships and has times that compare to the best paddlers in the world.dddddddddddd Not bad for someone who was terrified of the water when he first started kayaking at 8. Canoeist Casey Eichfield will be competing in his third straight Olympics and will try to pull off a double, competing in C1 and C2 with Devin McEwan. Eichfield finished fourth at world championships and was in the top 15 his previous two Olympics.NEES RELIEF: Womens kayaker Ashley Nee had a rough road to her first Olympics. She qualified for the 2008 Beijing Games, but injured a shoulder during a test event and wasnt able to completely recover in time for the Olympic trials, finishing fourth. Nee had enough points to qualify for the 2012 London Games, but was edged out by Caroline Queen on a tiebreaker. Nee won the Olympic trials this May, yet still didnt have a spot secured; she had to await a decision by the International Canoe Federation to award the United States an additional athlete quota spot. Now at 27, shes headed to her first Olympics.C1 OPENING: Mens single canoe has been dominated by two paddlers the past five Olympics: Michal Martikan of Slovakia and Frances Tony Estanguet. Starting with the 1996 Atlanta Games, those two won every gold medal in C1; three by Estanguet and two by Martikan. There will be a different champion in Rio after Estanguet retired and Martikan, the only canoe slalomist to win five Olympic gold medals, failed to make the Slovakian team for Rio.KEEP AN EYE ON: Kayaker Jiri Prskavec of the Czech Republic is the type of paddler who could be uncatchable if hes on his game. His father, Jiri, was a two-time Olympian and the younger Prskavec has a chance to make bigger waves in Rio. He was the 2015 world champion and has five medals in world championship competition. ' ' '