Former Hoops striker Andy Walker says Brendan Rodgers appointment as Celtic manager is a huge boost for the club, its fans and for Scottish football. Walker, who played 108 games for Celtic, believes Rodgers appointment on a 12-month rolling contract also signals the club will be willing to spend money to strengthen its playing squad.Its a huge boost for the Celtic supporters and its a huge boost for Scottish football for Celtic to be able to attract a manager of his pedigree, someone who could get one of the top jobs in England, Walker said. Obviously hes going to get a bit of money to spend which will be welcome news to the Celtic supporters. Rodgers will be on a 12-month rolling contract Walker continued: Theyve certainly got a name. This is a guy who I remember covering a few games for Sky a number of seasons ago and the football he played at Swansea was absolutely terrific and of course enabled him to get that job at Liverpool.Former Swansea manager Rodgers led Liverpool to seventh spot in the Premier League in his first season in charge at Anfield and within two points of the title the following year, but left the club in October.Walker added: He could have had a whole host of job offers and for him to have chosen this one to take, I think its a sign of serious intent from Celtic. Rangers manager Mark Warburton has backed Rodgers to do well as the new Celtic boss Walker believes the appointment of Rodgers, with his reputation for playing an exciting brand of football, will on its own lead to a significant increase in the number of season tickets sold at Celtic Park.The Sky Sports pundit added: I dont think he would have taken the job without the prospect of spending a bit of money in the transfer market - clearly not anything like he was used to spending at Liverpool, Celtic just cant compete at that level.With the potential of a challenge from Rangers, the excitement that Aberdeen and Hearts have given Scottish football over the last couple of years - its that challenge that Celtic have to meet and I think theyve met it head on. Also See: Celtic appoint Rodgers Rodgers to-do list Lambert: Brendan fit for Celtic Get £10 free bet! Oklahoma City Thunder Pro Shop . 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RIO DE JANEIRO -- When Merrill Moses first started playing for U.S. water polo, the team manager would pack a TV and VCR for overseas tournaments, and players would watch VHS tapes of their games. Tony Azevedo remembers waiting and waiting for the play he wanted to see.On the eve of the United States opener at the Rio de Janeiro Games, Moses can scout an opponents tendencies on his phone. Azevedo can watch every one of his shots for the last week. Water polo, one of the smallest sports in the Olympic program, has come a long way.Its time management, said Moses, a three-time Olympian who turns 39 on Aug. 13. Were definitely using our time more wisely and preparing in a much better way.When world champion Serbia takes on Hungary in the first mens game on Saturday, followed by the U.S. and defending Olympic champion Croatia, there will be no need for any introductions. Coaches are sharing more video than before, helped by the ease of technology, and USA Water Polo sends a staffer to major championships for video work -- even when the U.S. isnt participating in the competition.The increase in accessible scouting information puts water polo in line with some of the worlds biggest sports, where video libraries have been more commonplace for a longer time. But Azevedo, playing in his fifth Olympics -- a record for the U.S. program -- thinks there is plenty of room to grow.I think the more and more we start to understand our sport and people start investing more technology into our sport, then well actually be able to take it to a whole new level, Azevedo said Friday. I think its just started happening as water polo started growing in the United States and really outside of Europe.The use of underwater cameras also has added another leevel to water polo scouting.dddddddddddd Some major competitions like the Olympics show the thrashing and wrestling that goes on below the surface, giving coaches a closer look at how players are fighting for leverage in key areas of the pool.The 34-year-old Azevedo said the additional information helps in a variety of ways.I mean weve used it, of course, against opponents, saying 90 percent of this guys main shots or his goals are high left, he said. Weve even used it against ourselves, where you take a guy and say `Hey, you shoot 90 percent of your shots here. You need to start learning how to shoot, you know, cross cage or a lob or something else because people are going to catch on. So its really made both sides better.Shooting tendencies could take on even more importance in Rio. Following group play, tie games go straight to a shootout after regulation. Think penalty kicks in soccer.Whether its Moses or his backup, 6-foot-8 McQuin Baron, in goal for the tiebreaker, each of them can take a closer look on where shooters like to go in those situations.For Moses, an assistant coach at Pepperdine who takes a lot of pride in his preparation, the abundance of information presents a different challenge.Theres a fine line where you dont want to, Id say, overthink things, he said. A shooter has his tendencies. I watch it to pick that up, but you also got to understand that hes not always going to do that. When I was younger, I used to go `Oh, hes always shooting there, and now, I kind of know the tendencies, but Im still reading the situation.---Jay Cohen can be reached at http://www.twitter.com/jcohenap ' ' '