Honestly a number of big upsets I can see happening in the 1R that i'll be keeping an eye on:
Collins v Mertens. Collins ranked #41 in the rankings but #22 in race rankings. Mertens #10 in the race rankings and #15 actual rankings. Could go either way.
Niculescu v Osaka. Haven't seen much of Osaka on grass, Monica always tricky.
Kvitova v Sasnovich. This one's a little crazy and I don't think it'll happen, especially as I have Petra winning the title but Sasnovich is a tough 1R match, Brisbane runner up. Hope Kvitova sails through.
Bencic v Garcia. Don't think I need to explain that one.
Venus v Larsson. Venus hasn't looked great of late.
Sloane v Vekic. Donna loves grass and unsure on Sloane who hasn't played since the RG final.