Barau FC pushed for an equaliser after the interval, but Shooting Stars’ defence held firm to preserve the lead.
Mr Chukwu, 74, died on Saturday after a period of illness.
Chukwu was Nigeria’s first captain to lift the Africa Nations’ Cup, leading Nigeria to a 3-0 win over Algeria in 1980.
Tinubu eulogised Chukwu for a career defined by passion, discipline and commitment to national pride.
Rangers continued their dominant display after the break and were rewarded in the 60th minute when Godwin Uwumiro capitalised on a defensive mix-up to make it 3-0.
The Flying Antelopes had defeated the Tornadoes by a lone goal in the reverse fixtures at the Bako Kotangora Stadium, Minna.
Lönnström took charge of the final training session ahead of the NPFL Matchday 10 against Remo Stars in Ikenne on Sunday.
They’ve also secured a coveted spot in the 2024/2025 CAF Champions League.
Rangers will be hosted by the team from Arugo city in an Oriental Derby.
Technical Adviser of Rangers, Fidelis Illechukwu, blamed his team’s performance on tiredness.
