Sanchez played into extra time despite the knock and Wenger opted against taking the Chile worldwide on the club's pre-season tour of the U.S. to give him the best chance of recovery ahead of the new season.
The Frenchman's latest comments come after Gabriel Paulista was carried off on a stretcher with a suspected ankle injury during Arsenal's 3-2 pre-season friendly win over Manchester City on Sunday afternoon.
Liverpool 4 - 0 Barcelona: Reds Cruise In Champions Cup Fixture
In the 47th minute, Origi's flick released Mane and his low cross from the right was bundled into the net by Mascherano . Liverpool had to weather a succession of Barcelona chances before halftime.
Now, the Arsenal manager admits that his hand may be forced in the transfer market ahead of next weekend's clash.
"I've said many times that we are in the market", he said, in quotes reported by Arsenal's official website. Of course it's not an easy market for us. "Let's hope that the pain is not a sign of bad news".
Portugal asegura cuartos de final en futbol
Portugal reaccionó de la mano de Salvador y consiguió el empate a los 21 del primer tiempo, por intermedio de Tobías Figueiredo.
Per Mertesacker is expected to be out until the New Year after he sustained a knee injury, while Laurent Koscielny will probably not be ready for the visit of Liverpool having not yet resumed full training following his exertions at this summer's European Championships with France.
However, an injury to Gabriel in the closing stages could see the Brazilian ruled out of the start of the new Premier League season along with long-term absentee Per Mertesacker.
GST Bill in Lok Sabha on Monday; Narendra Modi to intervene
Revenue Secretary Hasmukh Adhia indicated that the government wants at least 16 States to ratify the Bill in the next 30 days. State governments widely support the GST because it will boost their share of taxes and make cross-border trade far smoother.
The Gunners have not won the top flight trophy since their famous unbeaten triumph in the 2003-04 campaign.