Federer, who is in quest of a sunshine double, eyes quarter-final berth in Miami.
Nadal takes on the 55th-ranked French player in R16 clash on Tuesday.
Viktor Axelsen in the highest-ranked Men's singles player at India Open Superseries, starting 28 March.
Singapore open campaign against higher-ranked Bahrain on Tuesday.
Sri Lanka need nothing less a win in the 2nd ODI to save the series on Tuesday.
Wawrinka faces the world number 53 Tunisian in his third round in Miami.
Singapore open Asian Cup 2019 Qualifiers campaign in Riffa on Tuesday evening.
Federer faces familiar foe Del Potro in the third-round clash on Monday.
Japan taken on the Group B strugglers at Saitama Stadium on Tuesday.
The return of the former skipper is expected to boost the national team.
Nadal has a 13-1 head-to-head advantage over his third-round opponent.
Nishikori takes on the Spanish player in their third-round clash on Saturday.
Ferrari earned their first win since 2015 Singapore Grand Prix, in which Vettel emerged victorious.
Gomez had led Johor Darul Ta'zim to two MSL titles and AFC Cup glory in 2015.
Indian Wells champion Federer eyes sunshine double in Florida.