SoftBank is becoming the financier of choice for ride-sharing startups in need of more cash.

The Japanese internet giant reportedly wants to take a multibillion dollar stake in Uber, but not until the ride-hailing firm hires a new chief executive, according to The Wall Street Journal.

Uber’s former CEO, Travis Kalanick, stepped down in June after growing shareholder opposition to his leadership, and the company is seeking a replacement.

The news follows a Bloomberg report earlier this month that Uber shareholders were planning a stock sale to SoftBank.

Nothing is confirmed, according to The Wall Street Journal, but a deal would make this SoftBank's fourth major investment in a taxi company.

The company has put cash into three Asian ride-hailing companies to date: Grab in Japan, Didi Chuxung in China, and Ola in India. It has invested a combined total of around $7 billion (£5.3 billion) in taxi firms to date.