Paco Alcacer has accused several people of treating him badly at Barcelona ahead of a Champions League reunion with his former club.
The Spain international left Barca for Borussia Dortmund on loan at the start of last season and made the move permanent in February.
Alcacer quickly proved a hit in Germany, scoring 18 goals in his first Bundesliga campaign, and already boasts seven in all competitions this term.
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That form gives the striker the chance to prove a point to those who doubted him when Barca visit Signal Iduna Park on Tuesday.