Thun came from 4-1 down to beat Lausanne 5-4 on Sunday
Hearts lost 2-1 to Hibs in a League Cup semi-final on Sunday
Thun have lost seven of their last 10 matches
Thun and Hearts go into round three of the Conference League league phase in search of a precious win to improve their qualification prospects.
The Swiss champions are in 32nd place in the 36-team table on zero points following a pair of 1-0 losses to Hajduk Split and FC Twente.
Wouter Vrancken's Hearts are four places and one point better off having drawn 1-1 with Nordsjaelland before losing 2-0 at Trabzonspor.
The latest Thun vs Hearts odds are available on LiveScore Bet
Key Stats
Thun have won only one of nine home games this season and lost each of their last four
Hearts have won only two of their last nine matches in all competitions
Riccardo Braschi has scored in three of his last four appearances for Thun
Claudio Braga, who has scored in each of his last three for Hearts, is averaging a Premiership-high 3.9 shots per game
Thun, the reigning Swiss champions, have played eight European ties and won just one; their two Conference League games have ended in 1-0 defeats
The Swiss side have won just three corners in their two ties to date, 1-0 losses to Hajduk Split and FC Twente
Thun have had four shots on target in their two games - only three other sides in the 36-team league phase have had fewer
Thun have committed 42 fouls against Hajduk and Twente, more than any other side over the first two rounds
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Score prediction
Team News
For Thun, midfielder Patrick Kristal is available after sitting out the 1-0 loss to Hajduk Split through suspension.
Fellow midfielder Fabio Saiz is out for a few weeks with a knee injury.
Midfielder Tomas Magnusson (concussion) and attacking midfielder Calvin Miller (knee) are the latest casualties for Hearts.
They are already without Christian Borchgrevink, Oisin McEntee, Harry Milne and Rogers Mato.
Need to know
If team stability is key to success then no wonder Thun are struggling.
Head coach Gian Luca Privitelli is averaging six changes per team selection per game, and made five more at the weekend.
The struggling Swiss champs have conceded 18 goals in nine home games this season, winning just once.
But Hearts have conceded at least four goals on three separate occasions on their travels.
Prediction
A 0-0 draw is of little use to Thun and not much better for Hearts, which should keep both sides in the mix.
Thun come into the game after an astonishing 5-4 win (from 4-1 down) at Lausanne at the weekend, while Hearts are smarting from a 2-1 loss against Hibernian.
Hearts' away games average 3.8 goals, while Thun's matches, home and away, average 4.3.
Thun are a direct, physical side who have committed more fouls than any other side over two rounds.
Fabio Fehr, booked five times this season already, has to be a strong candidate to see yellow (or worse).
Nine-goal Brighton Labeau has had the joint-most shots (3) and shots on target (1) against Hajduk Split and FC Twente and, fresh from scoring twice at Lausanne, can hit the target.
