Tonight, the Carabao Cup Third Round games kick-off, and with some ties being played tomorrow evening, we take a look at three clubs who could cause an upset across the next two days as EFL sides bid to get into the Fourth Round.

Swansea City (vs Watford)

Swansea City beating Watford may not be seen as a major upset, but the Swans will still be beating higher league opposition nonetheless.

Watford will be determined to put things right after their heavy, yet unexpected, defeat to Premier League champions Manchester City at the weekend and Swansea are currently flying high in the Championship.

Bersant Celina will be keen to show a Premier League side what he is capable of, the Kosovo international having been one of Swansea's main stars this season, despite being marked out of the game on Saturday against Bristol City.

Watford may play their strongest side or may choose to rest a few as they concentrate on Premier League duties, but Swansea have enough about them in an attacking sense to score enough goals to book their place in the next round.

Luton Town (vs Leicester City)

Leicester resting a few of their man men such as Jamie Vardy, Youri Tielemens and James Maddison could come back to bite them if manager Brendan Rodgers chooses to start his second string side.

Luton have enough about themselves despite sitting in 21st place in the EFL Championship to possibly cause a shock to Leicester and catch them off guard if they get a couple of chances in front of goal.

Luton are a dangerous team on the counter and the squad will be fired up to go and produce a 'cupset', with any win or good performance from the Luton players sure to boost their dressing room morale.

Nottingham Forest (vs Arsenal)

A Nottingham Forest side that are high on confidence and high on form will have an out-of-sorts Premier League side in their sights tonight, in the form of Arsenal.

Forest haven't lost since the opening day of the league season, and top scorer Lewis Grabban will be a dangerous player for Forest against the likes of Callum Chambers and Mustafi as he already has four league goals this campaign.

Forest upset Arsenal 4-2 in the FA Cup a couple of seasons ago with right-back Eric Lichaj getting on the scoresheet, and Arsenal will be need to be going into the game with no complacency if they are to get through.