Petr Cech picked up a calf injury in the first half of Arsenal's match against West Brom, with David Opsina having come on to replace him.
Arsenal were listless in attack and required their goalkeeper to come to the rescue on three strong Boro chances in the first half.
Petr Cech was left out of Arsenal's starting eleven against PSG but will return for the Premier League Week 5 clash with Hull City.
Petr Cech has announced his retirement from international football after representing the Czech Republic for the past 14-years.
Petr Cech continued to show why he is still one of the top goalkeepers in the world by helping the Czech Republic stay level with Spain for nearly the entire match, but the Spaniards would find a late winner to spoil the Arsenal man's day, 1-0.
Petr Cech was on the bench for Arsenal's 3-3 draw with West Ham last weekend but is likely to be back for both of the Gunners' matches in match week 34.
Arsene Wenger was non-committal when discussing Petr Cech's prospects of returning to the starting line-up against Watford in Week 32 action.
Arsene Wenger has refined the prognosis on Petr Cech from "out for the North London Derby" to "out for three to four weeks".
Petr Cech will miss Saturday's North London Derby after injuring his calf in Arsenal's Wednesday loss to Swansea City at the Emirates.
Arsenal's only summer signing was immense as the Gunners scratched out a nil-nil draw at the Britannia.
Petr Cech redeemed himself after a miserable Week 1 performance against West Ham with a string of exceptional first half saves to keep Arsenal level on the way to a nil-nil draw at the Emirates.
Cech, Bellerin, Mertesacker, Koscielny, Coquelin, Cazorla, Ramsey, Ozil, Sanchez, Giroud
Petr Cech wasn't the only poor performer but he was certainly the most visible as Arsenal lost 2-0 to West Ham at the Emirates in their season opener.
Petr Cech was fantastic in Arsenal's win over Everton in the Barclays Asia Trophy Final.