Mark Petchey believes becoming world No 1 marks Andy Murrays finest achievement in tennis. Murrays march to the final of the Paris Masters, coupled with Novak Djokovics quarter-final exit to Marin Cilic, means the 29-year-old will take over from the Serb at the top of the world rankings on Monday.And Sky Sports tennis expert Petchey, who coached Murray during the early stages of the Scots career, says the three-time Grand Slam winner is finally being rewarded for years of hard work. Andy Murray says hes proud after becoming the world number one, replacing Novak Djokovic after 122 weeks For me its his greatest ever achievement, Petchey told Sky Sports News HQ. Its a lifetime of work for his finest hour. There is so much that goes into being world No 1 anyway, but also at this stage of his career at 29, the fact he has just been behind Novak, Roger [Federer] and Rafa [Nadal] throughout the course of his career, to finally get to the summit of mens tennis underlines just how much Andy is willing to sacrifice and persevere and be patient. Live Tennis: ATP World Tour Finals November 13, 2016, 12:00pm Live on Get Sky Sports Get a Sky Sports pass All those ingredients go in, which is why for me it is his greatest achievement.Petchey is confident Murray will not rest now he is at the summit.The one thing about Andy is he will never relax, Petchey added. He always wants to get better and better and thats why hes become such a great champion. Murray won Wimbledon for a second time in the summer Speaking to his coach Jamie Delgado, after Wimbledon they went down to the Nadal Academy and his team were just blown away by the work ethic that he put into the training sessions there, after winning Wimbledon. That is the reason why this week we see him as world No 1, because there was no let down, he went straight back and worked.Petchey also believes the duel between Murray and Djokovic ensures an exciting end to the season, with both players battling to finish the year as the worlds best player. Novak Djokovic says Andy Murray deserves to become the world number one after raising his level in the last year The fact that the world No 1 is on the line for the World Tour finals is great and will be a spur for both players to produce their best tennis in the next couple of weeks, Petchey added. For Andy, to finish the year as world No 1 is a big deal. Lots of players have won a Grand Slam but failed to get to get No 1 at any stage of their career; there are even fewer players that have ended up year-end No 1 and for Andy to be able to achieve that will be enough of a drive for him continue this fantastic run. Murrays next aim is to end the year as world No 1 When he was 18, he didnt love the hard work. He always loved to play tennis, but now, he loves to work hard physically. He would have had a good career, he was that talented, but he wouldnt have become unique without investing in that hard work and growing on a daily basis to love it. Now hes arguably the hardest worker mens tennis has ever seen.Check our game-by-game updates from Andy Murray v John Isner from the ATP Paris Masters final and then follow his progress at the ATP World Tour Finals from London skysports.com/tennis, our app for mobile devices and iPad and our Twitter account @skysportstennis. 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Jaylen Hoard Blazers Jersey . There were no real chances until Augsburg broke the deadlock through Raul Bobadilla in the 33rd minute. Frankfurt failed to clear a cross and Bobadilla slotted home from close range at the far post.Melbourne, Australia - Tomas Berdych fended off a David Ferrer comeback on Tuesday and reached his first Australian Open semifinal as a result. Berdych, seeded seventh, won the first two sets of the quarterfinal meeting in quick fashion, then suddenly lost the momentum when the third-seeded Ferrer rallied to win the third. The hard-hitting Czech, having lost in the quarters of the Aussie Open the previous three years, made sure it wouldnt happen a fourth as he finished off a 6-1, 6-4, 2-6, 6-4 triumph at Rod Laver Arena. The first set lasted just 30 minutes, and Berdych appeared poised to make it a quick one by taking a two sets to love lead. Ferrer broke Berdychs serve twice in a third set that saw him nudge a line judge standing near a chair he wanted to put a towel on, a sign he was up for a fight. The frustrated Spaniard, however, coulldnt overcome Berdychs serve in the fourth, as Berdych fended off a break point in the final game and came away with the victory in three hours, three minutes.dddddddddddd. Ferrer rallied from two sets down to beat Nicolas Almagro in last years Aussie quarters before eventually losing in the semis to Novak Djokovic, who will play eighth-seeded Swiss Stanislas Wawrinka in Tuesdays other quarterfinal. The former No. 1 Djokovic is a dominant 15-2 lifetime against Wawrinka, including a fourth-round win here a year ago. The Serbian star also topped the Swiss in a U.S. Open semifinal last season. Djokovic, seeded second this year, has won his last 25 matches at the Aussie Open, where hes the three-time reigning champion and has captured four of the last six titles Down Under. Berdych fended off a Ferrer comeback attempt on Day 9. ' ' '