Tottenham Hotspur may have bounced back from an opening day defeat with an emphatic victory on Sunday afternoon but there was still a major issue bubbling above the surface.

Jose Mourinho's men, well the duo of Harry Kane and Heung-min Son, rocked Southampton with a 5-2 thrashing at St Mary's with the pair combining for the handful of strikes.

However, Danny Ings twice found the net by pouncing on crucial mistakes in the Spurs backline, raising the question does Mourinho need a new centre-back before that back-up striker spot?

Davinson Sanchez was handed a start over Toby Alderweireld and it didn't really pay off with the Colombian colossus losing possession a whopping 20 times as well as recording a disappointing 64% passing accuracy. He was also dribbled past once and committed one foul, per SofaScore.

For someone that cost the club £42m and is on wages of around £65k-per-week, it just isn't good enough.

Perhaps following the fan-happy signing of Gareth Bale, Spurs' recruitment team can look to bolster their defence instead of finding someone willing to play second fiddle to Kane.

The addition of the Welsh legend could open the door for Son to play in a more-advanced role whilst the England talisman showed signs of why he could be an ideal number ten with four assists and four key passes (50% of his total all game).

Tottenham conceded 47 goals in the Premier League last season, the second-most of any top seven team but only the wide areas have been improved with the additions of Matt Doherty and Sergio Reguillon, who are undoubtedly in for their attacking prowess more than anything.

You'd have to be worried if you were a Spurs fan going into the season with Eric Dier, Alderweireld and Sanchez as your three senior options in the heart of defence.

The 24-year-old badly let Mourinho down, though it's not his fault. A new centre-back should be their number one priority now.

AND in other news, Spurs could find Mourinho's next Ibrahimovic in £27m colossus...