Miami semifinalist Casper Ruud headlines Houston field.
IMG now owns Masters 1000 events in Madrid and Miami.
The Aussie has racked up $60,000 fines across Indian Wells and Miami.
The Norwegian notched a breakthrough against Sascha Zverev on Wednesday, and he's hoping for another in the Miami semis.
The 20-year-old has racked up 15 consecutive wins and is managing her energy well as she goes.
It's yet another bad break for Dominic Thiem, whose comeback is only just beginning - and now is being delayed again.
The Aussie was frustrated by Bernardes' decision to dock him a point during the first-set tiebreak.
