Tuesday sees the start of Swim Ireland's National Team trials, where competitors will have the opportunity to meet qualification standards for the Tokyo Olympic and Paralympic Games, the 2021 LEN European Championships in Budapest in May, and July's LEN European Junior Championships in Rome.

The opening day of action will see a number of Tokyo hopefuls in action in their main events including Ireland's fastest ever female swimmer Danielle Hill in the 100m backstroke. Hill needs to knock .65 of a second off her best time of 1:00.90 to make the Olympic time of 1:00.25. In the men’s event, top seed Shane Ryan has already hit the qualification time for the Summer Games.

The 100m breaststroke will see Mona McSharry and Niamh Coyne aiming for a qualification time of 1:07.07. McSharry is just three hundredths of a second outside of this mark with a best time of 1:07.10, while Coyne will need to drop 0.8 seconds.

Ellen Keane and Nicole Turner, already under the minimum qualification time for the Paralympic Games, will also be in action.

In the men's event, Darragh Greene has secured the Olympic qualification time, while Rio 2016 Olympian Nicholas Quinn and Irish junior record holder Eoin Corby will be vying for the second available spot.

Brendan Hyland, record holder in the 200m butterfly, will need to knock .07 off his best time of 1:56.55 to meet the Tokyo standard of 1:56.48.

And in the 200m freestyle, Bangor’s Jack McMillan, who set a record of 1:47.10 at the Irish Winter Meet in December, can meet the Tokyo qualification time (1:47.02) by taking .08 of a second off his time.

Live coverage from the National Aquatic Centre on the Sport Ireland National Sports Campus will be available worldwide on the RTÉ Player, with the heats beginning at 10am and finals action getting underway from 5.30pm.