Arsene Wenger looks to be trimming his forward line despite failing to add any new strikers thus far this summer. Joel Campbell looks to be on his way out of the club with Valencia being touted as his potential destination, while young Brazilian Wellington Silva also looks to be heading for the exit with a return to former club Fluminense on the cards.

The Gunners have been active in the market in search of a forward but have come up empty after the French manager's initial targets rejected the club's advances. Jamie Vardy was Wenger's number one target, but the England international rejected Arsenal's offer to sign a new deal with Leicester City. Alvaro Morata was also touted as a possible target, but Real Madrid are keen to retain the striker, who they re-signed from Juventus this summer.

Olivier Giroud is Arsenal's only recognised centre-forward, while Theo Walcott and Joel Campbell provide support from the wings while occasionally playing through the middle. The French manager had confirmed the need for a forward this summer, but has failed to add a top goal scorer with Granit Xhaka the only signing.

According to Spanish daily Estadio Deportivo, Wenger has asked Campbell to find a new club as he will not be guaranteed regular football this season and Valencia have made an approach to sign him. It could either be yet another loan or a permanent transfer for the Costa Rican, who has failed to nail down a regular place in the starting XI despite putting in some impressive performances last season.

AC Milan are also said to be interested in signing the 24-year-old, who was ahead of Walcott in the pecking order last season. This could infuriate the supporters, who are calling on the manager to add to his striker force as the lack of goals in the second half of the season was the main cause for Arsenal's title challenge fizzling out.

Joel Campbell
Joel Campbell is subject to interest from AC Milan and Valencia after Arsene Wenger advised him to find a new club Getty

Silva, on the other hand, is yet to make an appearance for the Gunners first-team and it is unlikely to happen this season after he failed to impress while on loan at Bolton Wanderers last season. The former Brazilian U17 international joined the Gunners from Fluminense in 2010, but the lack of a work-permit until last summer, saw him spend time on loan in Spain.

The 23-year-old forward returned to pre-season training with Arsenal earlier this month, but recently posted a picture with a Fluminese jersey with the caption: "A good son always returns home," as quoted by Brazil publication UOL Sport. It is a likely indication that the striker is on his way back to his homeland after a failed spell in England and Spain.