Nottingham Forest climbed out of the Premier League relegation zone and left Southampton rooted to the bottom of the table with a deserved 1-0 win at St Mary's
After an impressive home draw with Chelsea on New Year's Day, 18th-placed Forest travelled to the south coast in search of their first away win this season and took the lead when Brennan Johnson, who had earlier rattled the crossbar from close range, pounced on a Lyanco error and raced clear before setting up Taiwo Awoniyi for a simple tap-in (27)
Southampton, who have now lost six consecutive league games, wasted an opportunity to take the lead in the first half when Che Adams fired wide but  and were again booed off by their own fans at the end of each half
Southampton remain 20th after collecting just 12 points from 17 matches, while Forest rise to 15th having lost only two of their past eight
Disgruntled Southampton supporters chanted 'you don't know what you're doing' at full-time as manager Nathan Jones' losing run since taking the job extends to four Premier League games
"Whatever the fans think, we're in this situation
 That isn't entirely my doing," he said
"We've only won one game here in however many
 I've only had two home games here and I've won one (against Lincoln in the Carabao Cup)
 I know the frustration, but it's not entirely my making
"The players are low on confidence and the fans can get behind them, whatever they think
 They want to see a result and a performance and we're trying to give them that
"There's no lack of effort, maybe a little know-how and a little naivety, but when you're low on confidence things don't quite happen
 But things will change and they have to get behind the team for that
"Nottingham Forest arrived on the south coast with the Premier League's worst away record, ready to take on the team with the poorest home form
In a high-stakes encounter notable for , an elaborate light show illuminated the stadium ahead of kick-off and the energy initially transferred onto the pitch as both sides squandered glorious early chances
Southampton's top scorer Adams was culpable first, skewing wastefully wide with time and space after being sent clean through by Kyle Walker-Peters following a poor clearance from Forest goalkeeper Dean Henderson
The woeful miss was a major let-off for the visitors and they almost compounded Saints' frustration with their first attack
After Awoniyi delivered a low cross from the left, Ryan Yates' mishit shot fell kindly to the unmarked Johnson but his rising effort struck the frame of the goal
There was to be no second reprieve for Southampton as the slack defending which has been a hallmark of a dismal campaign once again led to their undoing
 Saints defender Lyanco dithered and then sloppily conceded possession on halfway, allowing the jet-heeled Johnson to burst clear and square to Awoniyi, who tapped in to score his fifth goal of the campaign
The breakthrough was only Forest's second goal on the road in the league this season and broke a six-game drought dating back to a 1-1 draw at Everton in August
Saints conjured nothing in response before the break and suffered the recurring ignominy of being jeered from the field by their success-starved supporters
The home side enjoyed plenty of possession during a tight second period but failed to test Henderson, while appearing susceptible to counter-attacks
They were given four minutes of added time to chase a valuable leveller
 However, Forest were more than comfortable and jubilantly celebrated a first top-flight away win since a 2-1 success at Blackburn in May 1999
Steve Cooper's resurgent side have now taken 11 points from the last 21 available, having only managed six from the previous 33
 manager  said: "It does [give us a mountain to climb]
 We started the game really well, on the front foot and had a glorious opportunity to take the lead and didn't take it and we gifted them a goal
 We know if you play square or loose balls into midfield, you are susceptible to giving the ball away
"We never demonstrated enough quality in possession
 We had enough possession around the box, but we didn't convert that into chances
 That's the frustrating thing
 We needed to be braver and bolder with our passing at times, and we weren't
 That allowed Forest to sit in and we couldn't break them down
"It could have been different, but we have to do certain things better for the scoreline to change
 One, we need to keep clean sheets
 Two, we need to take chances
 Three, we need to show more bravery in the final third
 Once we do that, we give ourselves the chance to win the game
" head coach  said: "When the game settled, we were by far the better team and the first half we controlled
"I challenged the players not to shy away from the fact that we've not picked up enough points away from home
 And we're going to have to start doing that
 We wanted to face up to that and didn't think about Southampton and league positions
"All of our fans deserve credit for this year but it was great for the away fans
 I know away tickets are hard to get so I know there are regular away travellers who haven't seen us win away in the league
 So they deserved that tonight
"It's a reference point for sure
 It [getting out of the bottom three] is something we've wanted to do
 It's easier said than done, we know how hard these games are
 We've just got to continue and take it step by step, with the culture and togetherness
"It may have seemed slightly strange to suggest before kick-off that Southampton needed the win more than Nottingham Forest considering both sides started the evening in the relegation zone, but Nathan Jones' team were in desperate need of three points as they looked to lift themselves off the foot of the Premier League table
Against a Forest team that had only scored once on the road this season and were yet to win away from home, it was, at least on paper, an ideal opportunity for Saints to breathe some much-needed life into their survival bid
But it never looked like happening
 They failed to register a shot on target as they deservedly fell to a sixth consecutive league defeat
 Six points from a possible 27 at St Mary's this term says it all
The club's decision to sack Ralph Hasenhuttl in November and appoint former Luton boss Jones is yet to be vindicated
 'You don't know what you're doing', disgruntled home supporters chanted at the final whistle
 It's four league defeats out of four for the Welshman
 He has had a brutal start to life as a Premier League manager
Unless the Southampton board backs him with some quality signings in the January transfer window, it's likely to get worse
 At the moment, his side look destined for Championship football next season, a division he knows all too well
Nottingham Forest's first away win of the season provided further evidence that Brennan Johnson is in the process of rediscovering his best form
 The 21-year-old started the season brightly with two goals in Forest's six games of the season but then failed to find the net - or an assist - before going to the World Cup with Wales, and even found himself dropped to the bench on a couple of occasions
However, a little bit of time to recover after Wales' group-stage exit appears to have worked wonders for Johnson, who has appeared re-energised since domestic football resumed
 He scored twice at Blackburn as Forest eased into the Carabao Cup quarter-finals in their first, and was a constant threat as Steve Cooper's side outplayed Chelsea at the weekend
Against Southampton on Wednesday he made a decisive contribution, seizing on Lyanco's error to race clear and calmly set up a tap in for Taiwo Awoniyi
 His performance was backed up by the numbers too, with Johnson leading Forest in chances created (3), dribbles completed (3) and tackles made (2)
"Brennan very rarely makes the wrong decisions, he always makes the right decision for the team," Cooper said