Spending big on a goalkeeper this summer would leave Martin Dubravka unhappy at Newcastle, according to Sky Sports journalist Keith Downie.

The 29-cap Slovenia international has been the Toon Army's number one shotstopper for the best part of four seasons, but Eddie Howe is actively looking to sign another goalkeeper.

What's the latest news involving Dubravka?

Dubravka has been Howe's first choice keeper from pretty much the moment he arrived, starting every game but two since he replaced Steve Bruce in November.

The 33-year-old has repaid Howe's faith shown in him by keeping five clean sheets in 19 matches this season, the latest of which came in Friday's victory over Wolves.

But Howe made his feelings clear about wanting to sign a goalkeeper in January after the Magpies were strongly linked with a host of stoppers.

Should Newcastle add to their goalkeeping department, Dubravka's position in the side could become under threat, and Downie believes that the experienced Slovakian wouldn't settle for being a backup.

What did Downie say about Dubravka?

He told GIVEMESPORT: "If they do spend a lot of money bringing in a goalkeeper, they would expect to start, and Martin Dubravka wouldn't be happy being number two, given how well he's played over the last couple of years."

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Which goalkeepers have Newcastle been linked with?

Newcastle wanted out-of-favour Manchester United keeper Dean Henderson in January, but the Red Devils weren't willing to leave themselves short for the second half of last season and didn't allow him to leave.

According to the Daily Mail, Henderson isn't the only English-based goalkeeper that Newcastle want to sign, though.

The reports says that the Magpies have written up a four-man shortlist, which includes Bernd Leno and Kepa Arrizabalaga, who are down the pecking order at Arsenal and Chelsea, and are likely to be available to leave their respective clubs.

Meanwhile, Newcastle are also interested in Sam Johnstone, who's expected to leave West Brom on a free transfer this summer after rejecting a new contract at the Hawthorns.

But Howe's side might have to look at other targets, with Sky Sports recently reporting that Spurs and Manchester United are currently battling it out for the England international's signature.