Tennis 2018.

Del Potro serving for the first set.

And does 6-4.

Del Potro serving to stay in the second set.

Two set points for Fed!

Ridiculous from Del Potro. One remaining.

Deuce.

Del Potro holds.

100mph winner from Del Potro. :blink:

Del Potro serving to stay in the second set again.

And he does.

This could be a bit grim, Fed's record against Del Potro in tie-breakers is little bit shit.