A 1-0 win over Leeds in the third round saw Arsenal handed a tricky test against Premier League opposition.
While Bournemouth currently sit in the relegation zone following a disastrous run of form over the festive period, their last match - a 3-1 home win over Brighton - has sparked hopes of a revival.
The Gunners will be favourites on the south coast tonight, but Eddie Howe's men will be confident after that recent win and should push the visitors all the way.
Here's how to follow all tonight's action...
You can also follow all the action on Standard Sport's LIVE match blog with Jack Rosser at Vitality Stadium.
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