Federer needs to reach the semis in Holland to become the oldest world No 1 in tennis history, beating Andre Agassi to the crown.
Roger Federer will have to likely overcome compatriot Stan Wawrinka in the quarter-finals to become the new men's singles world number one.
Roger Federer will have to reach the semi-finals of the 2018 Rotterdam Open to topple Rafael Nadal and become the new world No.1.
Boris Becker believes Novak Djokovic does not get as much credit as he deserves for his performances during the era of Rafael Nadal and Roger Federer.
Roger Federer says he is undecided over whether to compete on clay this year after sitting out of the season last year.
Michael Stich believes an all-attacking approach is the only way to bring down Roger Federer as the 36-year-old prepares to return to world number one.
Roger Federer can become world number one again if he reaches the last four in Rotterdam and wants to meet old friend Stan Wawrinka on the way to doing so.
Rafael Nadal, Novak Djokovic and Andy Murray's form never dampened Roger Federer's dream of being a grand slam champion again, the 36-year-old has admitted.
Boris Becker says current players have the advantage of better rackets.
Former world number one Boris Becker has cast doubts as to whether he can call Roger Federer the greatest tennis player of all time.
Dimitrov had a brilliant 2017 campaign, winning the Nitto ATP Finals, which propelled him to a career high third in the rankings.
Alexander Zverev has given his opinion on Roger Federer's recent success and the prospect of him becoming the new world number one.
Roger Federer could become the oldest world number one at the Rotterdam Open, and could also break a record currently held by Rafael Nadal.
Ruben Bemelmans has been paired with Roger Federer in the first round of the Rotterdam Open after coming through qualifying for the event.
Defending champion Jo-Wilfried Tsonga pulls out of Rotterdam with suspected hamstring tear, as Federer targets starting the American hard-court swing at the top.