Kane, 27, ended his long association with Chelsea by joining West London rivals QPR on a three-year deal.
However, six months prior, Kane had agreed a move to Bramall Lane but had the Blues and Gonzalo Higuain to blame as the deal fell through.
The promotion-chasing Blades identified Kane as a target during his loan spell at Hull City – one of eight temporary moves away from Stamford Bridge in just six years.
Of course, United went to seal automatic promotion to the Premier League, which has left Kane reminiscing on what could have been.
“I was at Hull on loan and Chris Wilder had been talking to me on the phone about me going there,” he told The Sun.
“It had all been agreed but Chelsea submitted the paperwork too late because they were busy getting the Gonzalo Higuaín loan from Juventus across the line first.
“I’d have been part of the Sheffield United team that got promoted and could’ve been playing Premier League football there now.”
Here are the latest transfer headlines from Sheffield United and their Premier League rivals:
1. Beckham not ruling out Messi or Ronaldo move
Inter Miami co-owner David Beckham has not ruled out trying to sign Barcelona star Lionel Messi - linked with Manchester City - or Juventus forward Cristiano Ronaldo for the MLS club. (Daily Mirror) Photo: Michael Reaves
2. Maldini to hold Tomori talks
AC Milan technical director Paolo Maldini wants to hold talks with Chelsea about the £26million option to turn Fikayo Tomori's loan into a permanent move as the Serie A club feel it is "very high". (Sky Sports) Photo: ALASTAIR GRANT
3. Pope destined to join top club
Former England goalkeeper Paul Robinson says Burnley goalkeeper Nick Pope is “one of the best” in the Premier League and is destined to join a top club amid links to Tottenham Hotspur. (Football Insider) Photo: Clive Brunskill
4. Lamptey considered by Everton
Everton hope to find the long-term successor to right-back Seamus Coleman this summer with Norwich City’s Max Aarons and Brighton and Hove Albion’s Tariq Lamptey under consideration. (Liverpool Echo) Photo: Naomi Baker