4 most in-form teams in the UEFA Europa League so far this season 

The second tier of European football competition, otherwise known as the UEFA Europa League, has produced some interesting battles so far. The competition recently concluded its matchday five and we are one more round of matches away from the knockout phase.

The eight group leaders will directly qualify for the final 16. The other eight teams (runners-up) will have to play against the third-placed teams from the Champions League (from their respective groups) to secure a berth in the round of 16.

Spanish side Real Betis and German outfit SC Freiburg have already ensured the top spot in their group, thereby qualifying for the final 16.

With one round of matches left to be played, we will take a look at the four most in-form teams in the Europa League.

#4 Royale Union Saint-Gilloise

1. FC Union Berlin v Royale Union Saint-Gilloise: Group D - UEFA Europa League

Belgian team Royale Union Saint-Gilloise has impressed everyone with their football this season. They are unbeaten in the Europa League, winning four and drawing one of their five games.

Union SG leads Group D, having scored 11 goals and conceded only six. Their Nigerian forward, Boniface Victor, is also the joint second-highest scorer in the Europa League. He is a key player for the team's success this season.

#3 Freiburg

Sport-Club Freiburg v Olympiakos Piraeus: Group G - UEFA Europa League

SC Freiburg have secured qualification for the final 16 after playing some scintillating football in Europe. They have drawn one and won four games, scoring 12 goals and conceding just two.

They topped the group consisting of teams like Nantes, Olympiacos, and Qarabag.

#2 Real Betis

Real Betis v UD Almeria - LaLiga Santander

Much like the two teams mentioned before, Real Betis too have won four and drawing one game this season. They are one of the few sides who are unbeaten this season.

They have hit nine goals, conceding four and lead the group 13 points. Manuel Pellegrini's side are a strong contender to go deep into the competition this season.

#1 Real Sociedad

Girona FC v Real Sociedad -

Another La Liga side who are doing brilliantly well this season is Real Sociedad. They have a 100% win record, which includes a win against Manchester United.

They have only conceded one goal so far, securing 15 points and scoring 10 goals. If they can carry on with their form, Sociedad stand a decent chance of wining the tournament itself!