Now fast forward to the end of the year and the centre-backs are both aiming to complete very different transfers to English sides.
The Times reports Manchester United are closing in on the signing of Lindelof, with a deal reported to be worth a staggering £42 million transfer fee.
Jansson meanwhile is on loan at Leeds United, who hope to complete a £3 million permanent deal once he has played 20 games for the club, a figure they will pass in early January, the Yorkshire Evening Post report.
It is a sizeable difference in valuation for two players considered as equals at international level, and are under contract to Benfica and Torino respectively.
The Mirror reports how Swedish legend Zlatan Ibrahimovic backs Lindelof to star at Old Trafford and live up to a big fee, and there is every chance he will prove to be value for money.
Yet his staggering price tag underlines what great value for money Leeds will be getting if they can tie down a deal for Jansson, who along with Kyle Bartley has been arguably the club’s player of the season so far, and has played a key role in the Whites climbing up into the play-off places.
Jansson, 25, is three years older than Lindelof, and has a depreciated transfer value due to an injury hit season at Torino last year, yet their loss seems set to be Leeds’ gain.
Lindelof is by all accounts the more accomplished player, but the price difference of £39 million underlines the staggering spending power of those at the top of the Premier League and clubs without a lot of money to spend in the second tier.
Over time, Jansson could prove to be just as shrewd an investment as Lindelof, and Leeds fans will argue they will get better value for money and wouldn’t swap the crowd favourite for his more illustrious international teammate.
There is every chance the duo could be duelling it out in the Premier League next season.