Australian Open Day 10 photos: Federer, Radwanska, Dimitrov impress

Grigor Dimitrov gets fired up. (Aijaz Rahi/AP)

MELBOURNE, Australia -- Day 10 of the Australian Open produced plenty of good tennis.

Roger Federer continued to play at a high level, beating Andy Murray to advance to his 11th consecutive semifinal here. Grigor Dimitrov, playing his first Grand Slam quarterfinal, impressed in a competitive loss to a fired-up Rafael Nadal, who gets Federer in Friday's blockbuster semifinal. And Agnieszka Radwanska put on a show in an upset of two-time defending champion Victoria Azarenka.

Here are some of our favorite photos from Day 10 of the Australian Open.

Grigor Dimitrov: His past struggles in best-of-five matches led to questions about his physicality, but he clearly made progress in Melbourne. The talented ball striker has some predicting a top-10 finish at the end of the year. (Eugene Hoshiko/AP)

Rafael Nadal: His blistered hand continues to cause concern, but Nadal once again showed the grit and fight that make him so formidable. Next up, Roger. Buy your popcorn now. (Aaron Favila/AP)

Grigor Dimitrov: Playing Rafa keeps you limber. (Rick Rycroft/AP)

Agnieszka Radwanska: It isn't often a room of international tennis writers sits enraptured by a women's match, but there was no shortage of admiration for the way Radwanska played Wednesday. It was amazing. (Aaron Favila/AP)

Grigor Dimitrov: He left the court in tears and told reporters the loss left him shattered: "Of course I shed a few tears, but it should hurt. It should hurt. And it does hurt." That's what hunger sounds like. (Mark Kolbe/Getty Images}

Dominika Cibulkova: A nervous Simona Halep was no match for Cibulkova, who rolled into her second career Slam semifinal with a 6-2, 6-0 win. (Eugene Hoshiko/AP)

Roger Federer: He's right back in the mix. And he wants you to know that. (Clive Brunskill/Getty Images)

Roger Federer: Locked in. (Paul Crock/AFP/Getty Images)

Andy Murray: His monologuing game was on point. (Saeed Khan/AFP/Getty Images)

Andy Murray and Roger Federer: