The players' tunnel

Before the big match, the referee's golden whistle vanished somewhere between the dressing room and the pitch. In the ten minutes before kick-off eight people went through the tunnel, and they all swear they only went to say hello. Some clues in this case come as riddles. If one stumps you, a hint will solve it. Eight people and one whistle, one per row and one per column. Almost nothing is said directly: you'll have to cross everything.

Suspects

• Acácio, the League delegate: He wrote in his report that the tunnel was calm. He was looking at his phone.
• Belarmino, the referee: He went into the tunnel with a whistle and came out without one. He says he started the match by whistling with his mouth.
• Cândida, the referee assessor: She marks referees. She gave the tunnel a four.
• Domingos, the home team's sporting director: He went to greet the refereeing team. He greeted them three times, just in case.
• Estela, the pitchside reporter: She covered the tunnel live. You can't see the whistle in the footage, but you can see Domingos three times.
• Firmino, the club's kit man: He takes the clean shirts to every dressing room. He also takes whatever is lying on top of them.
• Glória, the bifana lady: She runs a food van outside the stadium. She says the referee asked her for a pork roll, no whistle.
• Henrique, the tunnel steward: Twenty years a steward. He saw nothing, but he swears he saw everything.