Tuesday completes the Australian Open round of 16, and we’ll look to get out of our slump at Free Tennis Betting Tips.

We’ll look at the match between Roger Federer and Juan Martin Del Potro first, and even though Federer has looked fairly comfortable so far here, this should surely be a real test of his credentials.

Del Potro certainly won’t be in the psychological headlock that Bernard Tomic put himself in by admitting Federer was his idol. Del Potro has eased pretty comfortably into the last eight, and he should extended the Swiss player, and has every chance of taking a set, so we’ll take the over on game – with the intense heat likely to drain both players at some point.

Free Tennis Betting Tips: Del Potro/Federer over 38.5 games @ 1.91 with Paddy Power – use our link and claim a free £50 bet!