Cesc Fabregas sealed a 1-0 win for Chelsea over Swansea to boost their top-four chances, while leaving the Swans one point above the Premier League relegation zone
It took just four minutes for Chelsea to take the lead on Saturday, with Fabregas' superb curling effort his 50th Premier League goal
While the remainder of the first half lacked chances, Swansea were improved in the second period and had a number of chances to equalise
, Carlos Carvalhal's side are now just one point ahead of the drop zone in 17th, while Chelsea have closed the gap on fourth-placed Tottenham to two points
Chelsea made a fast start as N'Golo Kante capitalised on Andy King's poor control to unleash Eden Hazard, who shook off the challenge of Sung-Yueng Ki before setting up Fabregas to score
The visitors almost doubled their advantage in the 22nd minute as Olivier Giroud's header was sent agonisingly over the crossbar by Alfie Mawson, with the ball clipping the woodwork on the way through
The remainder of the opening period saw few chances, but Swansea went close seven minutes into the second half as Andre Ayew's header from a Martin Olsson cross was marshalled wide by Antonio Rudiger
Chelsea went close to doubling their lead once more in the 74th minute, as Fabregas picked out Victor Moses at the near post but the wing-back was unable to convert as the ball squeezed wide of the post
Swansea had their best chances to equalise in the final 15 minutes, with Andre Ayew hammering a shot wide before Kyle Naughton fired straight into the hands of Thibaut Courtois
Substitute Tom Carroll could have snatched a point for Swansea in the 89th minute with a powerful volley from just inside the area, but again it ran wide for the hosts as they suffered a second successive loss in the Premier League for the first time under Carvalhal
It was a moment of quality from Fabregas that decided a fairly quiet encounter at the Liberty Stadium, with his lovely curling effort bringing up his 50th Premier League goal - the third Spanish player to reach the milestone in the competition after former Blues Fernando Torres (85) and Diego Costa (52)
He also became only the fourth player to scored 50+ goals and register 100+ assists in the Premier League, and first non-British player to do so after Ryan Giggs, Wayne Rooney and Frank Lampard, showing how he continues to shine in England's top flight
Swansea will travel to Bournemouth in the Premier League next Saturday, while Chelsea welcome Liverpool to Stamford Bridge next Sunday live on 
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