The centre is set to stay with Connacht until the summer of 2025.
Aki first joined the westerners in 2014 and helped the province win the PRO12 title in 2016.
He made his Irish debut in 2017, and was a central player to Ireland's Grand Slam win back in March.
He has been nominated for this year's World Player of the Year award, alongside Irish coach Andy Farrell up for Coach of the Year gong.
Full Fixture Schedule In Tonight's SSE Airtricity Men's Premier Division
League leaders Bohemians are looking to make it six wins.
Chelsea Fined And Given Ban For Historical Breaches Of Financial Rules
Chelsea have been fined just under £11-million.
Monday Lunch Sport Update
Kildare footballers in relegation fight; next Sunday. Hurlers, Women footballers and camogie all in action on Saturday
Andy Farrell To Discuss Extension Of Contract With The IRFU
Farrell's current deal runs until the end of the 2027 Rugby World Cup.
Monday Morning Sports Update
Keeping you up to date on GAA, soccer and rugby.
Kildare in Relegation Battle After Cork Defeat
Allianz Football League Div. 2: Cork 1-31 Kildare 2-19. Up next vs Louth next weekend
Venue Switch for Kildare v Roscommon Camogie
Now in Hawkfield
Gaelic Warrior Has Won The Cheltenham Gold Cup
The Willie Mullins trained 11-4 joint favourite eased to victory over the rest of the field.
Light rain
13°C
Light rain
13°C
Low-level cloud
15°C
Sunny intervals
15°C
Sunny intervals
15°C
