NEW YORK -- Perhaps the greatest server of all time, Ivo Karlovic set a new mark Tuesday.The 21st-seeded Croatian swatted a US Open-record 61 aces in a 4-6, 7-6 (4), 6-7 (4), 7-6 (5), 7-5 win over?Yen-Hsun Lu of Taiwan to reach the second round of the seasons final major.Karlovics total smashed the previous record held by Richard Krajicek, who in 1999 hit 49 aces against Yevgeny Kafelnikov.After the match, Karlovic said he wasnt aware that he was in the process of setting a record.I [just] knew there was a lot of aces, Karlovic said. I was, like, hitting them easy. At one point, almost every serve was an ace.He was talking specifically about the second set, in which he hit an astonishing 22 aces in 35 strokes.The adrenaline ... I was in it, he said. As the match was getting on, I was getting better.Not surprisingly, Karlovic won more than 90 percent of his first-serve points and was broken only once. Karlovic equaled his ace total by hitting 61 winners. Just as impressively, he committed only 10 unforced errors in the 3-hour, 46-minute match. Karlovics performance increased his all-time ace total to 11,277, the most in ATP history and 1,146 more than second-place Goran Ivanisevic.Like the Williams sisters, Karlovic has defied time. At 37, he is the second-oldest player in this years US Open draw, behind the Czech Republics Radek Stepanek, who is three months older.Just three years ago, Karlovics career appeared all but finished. His ranking had fallen outside the top 160, and he had gone five years without a single title. This year alone, he has two, after wins at Los Cabos and Newport.On Thursday, Karlovic will face American Donald Young. Jordan 11 Wholesale . The showiest items on Calgarys lot were forwards Mike Cammalleri and Lee Stempniak. Both will be unrestricted free agents this summer. Cheap Air Jordan 11 Free Shipping . 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Subscribe today!Denver NuggetsOverall: 101 Title track: 116 Ownership: 95 Coaching: 85 Players: 94 Fan relations: 104 Affordability: 66 Stadium experience: 89 Bang for the buck: 87 Change from last year: +18In 2013, George Karl was let go by the Nuggets after 57 wins and an NBA Coach of the Year award. Denver has not won more than 36 games in the three seasons since. Gone are Ty Lawson and Andre Iguodala, staples under Karl. Long gone is Carmelo Anthony, who was traded during the 2010-11 campaign after six first-round playoff exits in seven full seasons in the Mile High City. Man, even the first round sounds pretty good right about now, doesnt it?Whats goodWhich Nuggets player would you pay to see? Sure, Emmanuel Mudiay, a former seventh overall pick, has promise. Kenneth Faried is fun. And theres new lottery pick Jamal Murray. But that trio isnt filling seats. No one is packing the house to see Nikola Jokic or Danilo Gallinari (sorry, fellas) like they did to see Melo. But to its credit, Denver has adjusted, keeping its costs low to get fans in seats. That was reflected in a 19-spot improvement in affordability. An average ticket to the Pepsi Center is slightly below NBA average, and the average cost per game is only $60.32 (less than half what it takes just to get in the building in New York).Whats badPut it this way: There are only six teams below the Nuggets in title track (116th), and two of them are the Cleveland Browns and Detroit Lions.dddddddddddd Even the Brooklyn Nets, whose next first-round pick comes at the end of the decade, are two spots ahead of Denver. Sadly for Coloradans, that makes sense. Since cutting ties with Karl, the Nuggets have hired and fired Brian Shaw and replaced him with Mike Malone. They have yet to identify their next franchise cornerstone. Mudiay landed on the All-Rookie second team but wasnt a knockout, and the teams leading scorer was Gallinari, who has played a combined 112 games the past three seasons. As a result, the Nuggets have landed squarely in the NBAs Siberia: not good enough to contend ... and not bad enough to win the lottery.Whats newCoaching (at No. 85) and players (at 94) improved 22 and 25 spots, respectively. Although its true the Nuggets arent on a title track, as we say in these rankings, they have made some positive changes. Malone is a veteran NBA coach who is defense-first and looks to instill a more functional environment than Shaw, who underperformed relative to expectations that he would be the NBAs next hot coach. Alongside Mudiay, the Nuggets have added Murray, the lottery pick out of Kentucky who declared himself the best player in the draft prior to his being selected. The good news for Denver fans? He just might be right.Next: Philadelphia 76ers?| Full rankings ' ' '