The Australian Open is under way, and Twitter is serving up special hashtag-triggered emoji and stickers for the Grand Slam tennis tournament.
The hashtag #AusOpen will add a special emoji to tweets about the tournament.

And a selection of Australian Open stickers can be added to tweets.
Jonno Simpson, who works on sports partnerships for Twitter, said in a blog post that this year?s Australian Open is the first Grand Slam tennis tournament to get its own stickers on the social network.
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