Manchester United have made a bid of 85-million-euros to RB Leipzig for striker Benjamin Sesko.
The fee is an initial 75-million-euros plus around 10-million in add-ons.
Newcastle have also submitted a second bid of 80-million-euros for the Slovenia international.
Sesko scored 21 goals for Leipzig last season.
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Meanwhile, Alexander Isak is due to hold talks with Newcastle this week having arrived back at the club.
The Swedish forward had been training at his old club Real Sociedad, while the rest of the Newcastle squad took part in their pre-season tour.
Isak is the subject of interest from Liverpool, who have already had a bid of 140 million euros rejected.
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World football's governing body FIFA is facing a multi-billion euro lawsuit from a group of current and former players over lost income.
It follows last year's verdict by the European Court of Justice that its transfer rules are unlawful.
About 100-thousand players represented by the Justice for Players foundation are now also seeking compensation from the football associations of France, Germany, the Netherlands, Belgium, and Denmark.
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Celtic have signed Jahmai Simpson-Pusey on loan for the season.
The 19-year-old centre-back moves to the Scottish champions from Manchester City.
He made six first-team appearances for Pep Guardiola's side last season.
