The Montenegro-born 20-year-old has no titles and a career-high ranking of 152 but played with the composure of a seasoned campaigner to close out the match 6-4 7-5 4-6 6-4.

BBC: Australian Open: Rafael Nadal overcomes Bernard Tomic

That an unknown high school teacher from a minority community could run for presidency and beat seasoned politicians was unheard of.

BBC: Africa

Seasoned storm trackers provide critical field data that can't be gleaned from high-powered Doppler radar, veteran meteorologists say.

NPR: Storm Chasing Critical, Profitable And Dangerous

Even seasoned investors find it hard to resist a lemming-like rush to grab stakes in high-profile web firms.

ECONOMIST: Valuing Facebook: Zuckerberg��s rocket, ready for lift-off | The