Hugo Lloris has been one of Spurs' finest recent imports, displaying a level of consistency in goal his predecessors Brad Friedel and Paul Robinson had failed to do and has developed a reputation for shot-stopping, having saved his side on numerous occasions since his arrival.
He is, arguably, one of the most critical players in a Spurs side challenging for European football next term, an assessment which is further underlined by the fact no goalkeeper has kept more clean sheets than him.
Petr Cech and Wojciech Szczesny can both boast the same total but it is testament to Lloris' ability when you consider five teams - including Chelsea and Arsenal - have conceded less goals.
The backline in front of him has hardly been water-tight and yet he has maintained a place amongst the elite No.1s in the division, so a report in the London Evening Standard this afternoon - suggesting PSG are tracking his progress - will not go down well at White Hart Lane.
But a contingency plan is always needed, particularly when big guns such as the Ligue 1 outfit begin to circle so here are five options Sherwood or - in the event of his likely departure and Louis Van Gaal's touted appointment - the next Spurs manager to ponder as replacements...
The Stoke City shot-stopper is widely regarded as the best goalkeeper outside of the top seven and has been linked with Arsenal and Manchester United in the past.
But Tottenham's need could potentially be far greater and given his seven clean sheets this season in a struggling Potters side, his quality in the top flight is evident.
One key factor to any deal is the fact Jack Butland signed for Mark Hughes' side last season on the basis he would receive first-team assurances. He currently doesn't have those, and is out on loan as a result, such is the form of Begovic.
Italy's next big hope, the Genoa goalkeeper has been dubbed the new Gianluigi Buffon by regular Serie A watchers and his stock continues to rise, having first come to their attention during a loan spell last season at Pescara.
Arsenal were credited with an interest in his services last year but AC Milan are believed to be strong favourites to capture the shaggy-haired keeper in the summer to replace Christian Abbiati.
He would represent a youthful choice in replacing Lloris but given his plaudits, it wouldn't appear long before Perin is garnering them at a higher level.
England will be trying to score past this man in this summer's World Cup and, certainly on evidence of his league form this season, that will prove a mean feat.
The Costa Rican goalkeeper has excelled in a Levante side which continue to over-achieve in the lofty heights of eighth and Navas has been a key part of their success.
He has made 93 saves in La Liga this season - more than any other goalkeeper - which has alerted the likes of Milan, Liverpool and Everton.
The Marseille keeper is the understudy to Lloris at international level and has revealed he is keen to leave the club in the next transfer window, with England believed to be his preferred destination.
He would command European football, but Tottenham are currently well-placed to achieve Europa League football at the very least.
Mandanda has been a key part of Marseille's recent rise into the Champions League and would offer Spurs a keeper proven on the biggest stage. Question marks would inevitably surround his status as deputy to Lloris at present but he is a strong, athletic keeper perfectly suited to the rigours of English football.
The Olympiakos man - on loan from Atletico Madrid has shown enough promise on the Champions League stage this season to suggest he could deal with a move to the Premier League.
In one group stage game against Benfica, the Greek giants allowed the Portuguese outfit 13 efforts on goal and yet it was Roberto's side who came out on top.
His miserly performances in goal extend to his league form, where he has conceded just 12 goals in 27 games and, having put in another good showing against Manchester United in a remarkable 2-0 win, he has put himself in the shop window. With Thibaut Courtois' future undecided as yet by Chelsea, Atletico may be loathe to lose him at present, but should they snap up the Belgian, Roberto could be on the move.
image: © Stanislav Vedmid