UEFA Europa League Semifinal Scenarios: How Each Team Can Advance to the Final

The matchup for the UEFA Europa League final in Baku, Azerbaijan, will be set by Thursday night after the conclusion of each semifinal second leg. After the first legs, an all-English final is possible: Chelsea is even with Frankfurt but scored an away goal, while Arsenal handled business at home against Valencia. Both semifinal second legs will kick off at 3 p.m. ET Thursday on B/R Live.
Below are the scenarios and scores that each club needs in the second leg in order to advance to the Europa League final on May 29, information on how to watch the UEL semifinals, and highlights and match previews from both ties.
Semifinals Leg 2 Scenarios: Scores needed to advance
Valencia (1) vs. Arsenal (3)
Arsenal is certainly in a comfortable position heading into the second leg, but Valencia's away goal provides some hope as the tie shifts to the legendary Mestalla, where the Spanish side has won eight Europa League matches in a row. The team with the highest aggregate score over both legs will advance to the final, with the first tiebreaker being away goals scored.
Valencia hitting the back of the net as visitors in the first leg means that a 2-0 win at home sends them through to the final. If Valencia leads 3-1 after regulation and stoppage time, the match will go into extra time, where the away goals rule will remain in effect.
If the aggregate is 4-4 heading into extra time and each team scores in extra time, the match would not go to penalties. Instead, Arsenal would win by virtue of scoring two away goals. Thursday's match will only go to penalties if both the aggregate score and away goals scored are even. Here is how each scoreline would determine which club reaches the final:

Just as Valencia can bring confidence from its away goal in the first leg, the Gunners will know that one goal of their own in Spain will shift pressure significantly onto Valencia, and a second would almost surely seal the tie. Arsenal scoring twice in regular time will eliminate the possibility of extra time and force Valencia to score five goals in 90 minutes.
Chelsea (1) vs. Eintracht Frankfurt (1)
Chelsea recorded a solid first-leg result at a tough place to play in Germany, but it's sure to be an intense second 90 minutes at Stamford Bridge. Given the scoreline is all square heading to London, the winner of the second leg wins the tie and goes to the final.

Chelsea's away-goal advantage comes into play only in the case of a scoreless draw, in which case it would go through. A 1-1 draw sends the match to extra time, where a second Eintracht Frankfurt away goal would require the Blues to answer with two.
The match would not go to extra time if Eintracht scores twice in normal time, and any draw of 2-2 or higher sends the German club into the final. Of note, Frankfurt has scored in 14 straight away matches in European play.
Semifinals Leg 2: How to watch, stream
You can watch both Europa League semifinal second legs Thursday by streaming the matches on B/R Live. Kickoff for each game is at 3 p.m. ET, and coverage will begin with B/R Football Matchday at 2:30 p.m. on B/R Live.
Watch Valencia vs. Arsenal on B/R Live
Watch Chelsea vs. Eintracht Frankfurt on B/R Live
Semifinals Leg 2 Preview and Leg 1 Highlights
Valencia vs. Arsenal
Arsenal manager Unai Emery spent four seasons as the head man at Valencia from 2008-12, reaching the Europa semifinal in his final season. Arsenal has never won the Europa League, while Valencia triumphed in 2004.
After Valencia scored first in the first leg, Arsenal controlled the match through Alexandre Lacazette, whose two goals before halftime provided the lead.
Keep your eyes on Lacazette in the second leg, as his European form is very high, having also scored a sublime free kick in the quarterfinal win over Napoli. For Valencia, it's all about sharing the wealth: Its last six goals have come from six different players.
Chelsea vs. Eintracht Frankfurt
The second semifinal features the two strongest Europa League teams this season. In 13 matches, Chelsea hasn't lost, winning 11 and drawing twice; Eintracht has only one loss and in the knockout stage leading up to the semifinals. Frankfurt faced three consecutive clubs that had transferred from this season's Champions League and eliminated all of them.
The second leg has the makings of a shootout given the firepower in each lineup. Chelsea's Olivier Giroud leads the Europa League with 10 goals, and right behind him with nine is Eintracht's Luka Jovic. Pedro is also heating up for the Blues, having scored three times in their last two Europa matches.
Chelsea has won nine Europa League matches in a row at home, and the first-leg draw was set a Europa League record for 16 matches unbeaten in a row. The 2013 Europa League winners have also never lost at home to a Bundesliga side.