By London correspondent Tony Hughes

Espanyol goalkeeper Pau Lopez is set to undergo a Tottenham medical on Saturday and complete a loan-to-buy move to the club, according to a report.

Spanish newspaper Sport claim that the 21-year-old will say his farewells to supporters at Thursday night’s clash against Malaga before heading to London to put the finishing touches to his Spurs move.

It is said that the terms of the deal were agreed last week but the transfer has been put on hold while Espanyol source a replacement for Lopez.

Spurs had agreed to pay a £520,000 fee to sign Lopez on a season-long loan and there will be a £6.1million option to buy him permanently next summer.

Sport report that the Spaniard’s medical is set to take place on Saturday and he will be announced as a Tottenham player next Monday.

The Londoners have signed midfielder Victor Wanyama and striker Vincent Jansson this summer and Sky Sports revealed on their Twitter account last weekend that they have also agreed a deal with Marseille for winger Georges-Kevin N’Koudou, although that has not been officially announced.

Lopez is in line to become Spurs’ fourth senior signing as Mauricio Pochettino continues to tweak the squad that finished third in last season’s Premier League.

Pochettino has been keen to add a third senior goalkeeper to supplement Hugo Lloris and Michel Vorm.

Espanyol have given the green light to the 21-year-old leaving as new manager Quique Sanchez Flores will install summer signing Roberto from Olympiako as his No1 this season.

Lopez would arrive at Tottenham as back-up to established first choice Lloris, who will be out until mid-September with a hamstring injury.

Spanish outlet Sport claimed at the start of August that the Londoners had an initial £2million bid for Lopez rejected as Pochettino looked to add competition for Lloris.

The injury to the Spurs captain increases the need to sign a new keeper even though his deputy Vorm is an experienced Premier League campaigner and stood in for the club captain in Saturday’s 1-0 win over Crystal Palace.

The arrival of the shot-stopper from Spain could push Vorm further down the White Hart Lane pecking order.

Espanyol academy graduate Lopez made his debut in 2014 for the Spanish club, who were previously managed by Pochettino.

Lopez made 38 appearances for the La Liga club in all competitions last term, as he conceded 74 goals, which included seven clean sheets.

In other Tottenham transfer news, scouts have been watching Nottingham Forest youngster Oliver Burke after the teen sensation continues to impress.