SOUTHAMPTON, ENGLAND - DECEMBER 01: Romelu Lukaku of Manchester United is challenged by Nathan Redmond of Southampton during the Premier League match between Southampton FC and Manchester United at St Mary's Stadium on December 01, 2018 in Southampton, United Kingdom. (Photo by Mike Hewitt/Getty Images)

4 Things We Learned From Southampton's 2-2 Draw Against Manchester United on Saturday

After an enthralling game in which all four goals were scored during the first half, honours ended even on Saturday between Southampton and Manchester United.

A point apiece meant that Southampton moved off the foot of the Premier League table whilst Manchester United missed out on the chance to close the gap on the top four.

Here are four things we learnt from Saturday's goal-fest.

1. Southampton Cannot Hold on to a Lead

Having led 2-0 inside the first 20 minutes, it looked like a shock upset was on the cards for Southampton.

However, United pulled their way back into the game before half-time thanks to goals from Romelu Lukaku and Ander Herrera.

After failing to hold onto their lead, it means that Southampton have now dropped 11 points from winning positions so far this season, a habit the players know they will have to change if they are to stay in the top flight.

2. United's Defence Is Vulnerable

David de Gea's failure to keep a clean sheet at St. Mary's means that Manchester United have stopped opponents from scoring in only two of their 14 Premier League matches in the 2018/19 campaign. 

Indeed, Saturday's result means that United possess a negative goal difference in December, not typically something you would associate with a side managed by José Mourinho. 

The Red Devils' next opponents, Arsenal, will be licking their lips at the prospect of facing such a brittle United backline.

3. Scott McTominay Is Not a Defender

With injuries to centre-halves Eric Bailly, Chris Smalling and Victor Lindelof, José Mourinho had no choice but to start Scott McTominay in defence against Southampton. 

The 21-year-old, a midfielder by trade, did not look comfortable at all in his first Premier League start since the beginning of October, a game in which, incidentally, he was substituted at half-time. 

Deployed as a centre-back against Southampton, he endured a torrid night up against the pace of Nathan Redmond. 

4. Marcus Rashford Has Earned A Regular Starting Spot

Marcus Rashford was United's best player on the pitch against Southampton, providing the assists for both of his side's goals. 

As a result, it was a strange decision decision by Mourinho to replace Rashford with Anthony Martial for the final 20 minutes of a game United should have been more eager to win. 

Too often in the second half, United's midfielders were content to let the game pass them by, failing to dictate the pace of the contest.

Following his performance on Saturday, as well as the winner he scored against Bournemouth a few weeks ago, Rashford deserves a starting spot in the Manchester United XI. 

Four things we learned from Manchester United's 2-2 draw with Southampton on Saturday in the Premier League.