Miami: Roger Federer jumped to one spot to grab the fourth place in the ATP rankings released on Monday after clinching his 101st career title with his victory over John Isner here at Hard Rock Stadium.
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The Swiss great switched places with Austria's Dominic Theim, who had earlier climbed to fourth after beating Federer in the final at Indian Wells two weeks ago.
Meanwhile, Rising Greek star Stefanos Tsitsipas rose to eighth, best in his career, while Canadian teenager Denis Shapovalov cracked the top 20 for the first time following his run to the Miami semifinals.
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18-year-old Felix Auger-Aliassime soared 24 places to 33rd after matching compatriot Shapovalov's run to the last four in Florida before losing to defending champion Isner.
Novak Djokovic has retained his numero uno position despite crashing out in the last 16 in Miami, with Rafael Nadal still well ahead of third-ranked Alexander Zverev as the Spaniard targets a return from injury for the clay-court season.