Serena Williams positively shone on Opening Night at the US Open - check out photos from the World No.1's opening win, as well as some of the other best pics of the day, right here.
WTA Staff

NEW YORK, NY, USA - The vibe was electric on Arthur Ashe Stadium on Monday night even before Serena Williams stepped out for her opening match, as the Opening Ceremony - headlined by two of the biggest names in the singing business, Josh Groban and Vanessa Williams - took the court...

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But when Williams stepped onto the court it was all business - taking on No.86-ranked Russian Vitalia Diatchenko, the World No.1 would storm out to a 6-0, 2-0 lead after just 30 minutes of play.

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Williams' form and a left ankle injury were too much for Diatchenko at that point, and she retired from the match, meaning Williams had her 22nd straight win at the US Open and 29th straight at a Slam.

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And that wasn't the only news for Williams on Monday. Two of her biggest threats in the top half of the draw were stunned on Day 1, beginning with No.7 seed Ana Ivanovic, who fell to Dominika Cibulkova.

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Karolina Pliskova, the No.8 seed, fell in turn to Georgian-born American qualifier Anna Tatishvili.

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At No.12, WTA Rising Star Belinda Bencic is now the highest seed Williams could face before the final.

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But there are a few other threats still alive in the draw whose seeding may not really tell the whole story... former World No.5 Eugenie Bouchard, who beat Alison Riske for her first Grand Slam match win since Australia, and former No.1 Venus Williams, who survived a marathon against Monica Puig.

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Come back to wtatennis.com every day this fortnight for all the best coverage from the US Open!