Live Commentary

So the five time champion reaches the semifinal of the 2009 Wimbledon with a straight sets win over the 6'10'' tall Croat. Federer followed the similar strategy of pocketing a single break to ensure he holds serve for a comfortable win. This is Federer's 21st consecutive semifinal appearance at a Grand Slam event.

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Federer's most satisfying performance before the triumph at French Open was the win in the final of Mutua Madrilena Madrid Open, where he tamed the Lion in his den.

Federer's capabilities were first questioned after his loss in the finals of Australian Open when he lost to arch nemesis Rafael Nadal in five tough sets. His emotional meltdown in front of millions left the tennis world wondering whether he is capable of winning big matches at grand stages or not.

Karlovic comes up with some good play at the net to show his presence in the match. Can he take his game to another level to give some fight to the Swiss star?

Federer has delivered flawless performances in his first two matches at this year's Championships. His opening round demolition of Chinese Taipei's Yen Hsun-Lu gave a clear indication that he is the strongest contendor for this year's title.

Federer continues to dominate the tall Croat in every department with a crucial break in the 11th game to pocket the set 7-5

Federer's patience paid as he pocketed the elusive break to now serve for the set and take a huge 2-0 lead in the match.

Karlovic fires the fastest serve of the match - 138 mph to stay ahead in the second set and take his chances to a possible tie-break

Federer's second round match against Spaniard Guillermo Garcia-Lopez witnessed the Swiss' brilliance from all corners of the court.

Karlovic impresses for the first time in the match with a come-from-behind service hold to avoid a deadly service break

Federer faced his first real challenge at this year's championships when German Philipp Kohlschreiber took a set from him in a particularly dominant tie-break. Although his quick damage control in the fourth set to close out the match made Federer see this as an emphatic win.

Karlovic shows sharpness in play along wit some trademark serves to stay ahead in the second set. Is a tie-break in the offing?

After losing the first set rather tamely, Karlovic regroups himself and holds both his service games well to stay on serve.

Federer has already beaten Karlovic this year in Rome with his impressive play at all corners of the court. Karlovic, on the other hand, has come a long way since then, with some upset wins over Fernando Verdasco and Jo-Wilfried Tsonga in the previous rounds here.

So Federer wastes no time to pocket the opening set 6-3. The strategy is simple, get the elusive break and then conserve all your energy in holding serve. Sounds like an idea for sure...!

Federer recently became a part of history by achieving a 'career-slam' as the 2009 French Open brought title glory for him. His emphatic win over rising Swedish Star Robin Soderling came at a time when he most needed it.

Federer consolidates his break with some solid serving.

Now that Federer has won the French Open, the equations have all changed but ironically, just a couple of months ago he was totally written off as someone who may never win a slam again, or that he is past his prime. It was Federer's win over Rafael Nadal in Madrid that changed the opinionated mindset of tennis pundits to an extent.

So after only 11 minutes of play, Roger Federer races to a 4-1 lead in the opening set. is this going to be another one of those dominating wins Federer had over Karlovic in the past

Federer makes an impressive start to the match with some big serves and controlled groundstokes.

Roger Federer started the year in promising style,reaching the final of the Australian Open. But ever since, he saw a down trodden performance, perhaps the most challenging in his career since his triumph in 2003 Wimbledon.

Federer has delivered flawless performances in his first two matches at this year's Championships. His opening round demolition of Chinese Taipei's Yen Hsun-Lu gave a clear indication that he is the strongest contendor for this year's title.

The Championships, Wimbledon Gentlemen's Singles Quarterfinals
Roger Federer vs. Ivo Karlovic
Federer leads series 8-1
Last Meeting - 2009 ATP World Tour Masters 1000 Rome
Federer won 6-4, 6-4

Federer has always been quite methodical in his tussle with tall Croat Ivo Karlovic. The last encounter was one of the finest examples of Federer's to-the-point match strategy, focussing only on a single break in the set. The fact is that the 6'10'' tall frame is now considered an Ace-machine by the tennis fraternity and with Karlovic's routing of names like Verdasco and Tsonga, Federer's road to the finals is in jeopardy for sure. The five time Wimbledon champion definitely has an edge with such a strong head-to-head in his favour, but Karlovic is in a kind of form that may see him pull an upset as well.