Arsenal fans are calling for Unai Emery to make signings this summer.The north London club have shown signs of improvement under Emery but, after 21 Premier League games, they are sitting three points away from a place in the top four.It is clear that Arsenal need signings to give them that extra boost as they search for a return to the Champions League.And it looks as if Emery is trying his best to strengthen his squad.He has already revealed he is trying to sign a winger and it is heavily believed that Denis Suarez is the man he is targeting.The Spaniard, who currently plays for Barcelona, is believed to be close to completing a loan move.Despite intense speculation, Suarez was included in Barcelona's squad for their Copa del Rey tie against Levante on Thursday night.The 25-year-old started the match on the bench but was brought on with 23 minutes remaining.And, with five minutes of the game left to play, he made his mark.With Barcelona 2-0 down and seeking a goal, Suarez produced a moment of magic to win a penalty for his side.Picking up the ball on the right-hand side, Suarez showed a mixture of strength, pace and trickery to glide his way past players and make it into the box.He then drew a foul to win a penalty for his side.Watch his moment of magic below:

That is seriously impressive stuff. If he does make the move to Arsenal as he is expected, he could prove to be a very good signing for the club.

Emery was asked about his interest in a move for Suarez on Thursday and, he admitted that any deal for Suarez would be a in the form of a loan.

"We can’t sign with payment for one player,” Emery said, per the Daily Express. "We can only loan players.

"The club is working. The club is telling me each moment that different situations can happen for recruitment.

"But at the moment I don’t have new news on that.

"I don’t know now his [Suarez’s] situation. But we can only sign on a loan and I know the club is working for the possibility of players who can help us with this condition."