Celtic face Tierney concern as O'Neill wants signings

Hugh Keevins argues Martin O'Neill's Celtic role should be reviewed humanely after the Champions League collapse raised serious questions over his position.
Union SG captain Kevin Mac Allister called Celtic his standout Europa League tie, while his manager said the Belgian side must be at their best to get points.
Camilo Duran's double led Celtic to a 2-1 win over Falkirk, easing European pain as supporter protests against the board stayed relatively muted.
Camilo Duran scored twice in 29 minutes as Celtic beat Falkirk 2-1. Colby Donovan's own goal gave Falkirk hope, but Celtic held on despite missed chances.
Tierney went off after 70 minutes against Falkirk with an injury, not cramp. O'Neill said it looked similar to Kasper Hogh's issue but was awaiting checks.
Celtic weigh a tentative move for Nick Pope as the transfer deadline nears, while PSV have made Joel van den Berg's asking price clear.
O'Neill said Reo Hatate strained himself in training and 'ruled himself out of contention' for Celtic's 2-1 win over Falkirk.
O'Neill criticised Celtic's 300-ticket allocation for the Ibrox cup tie, saying away fans make the fixture and he would rather the club refused the allocation.
Celtic are pushing for midfield reinforcements before Tuesday's deadline after the Champions League exit, with Martin O'Neill and staff still working on deals.
Callum Osmand was pictured leaving Celtic Park in a boot and crutches after the 2-1 Falkirk win, raising fresh injury concern for Celtic.
O'Neill said Celtic still need signings despite dropping into the Europa League after a 5-1 extra-time defeat by LASK sealed a 5-4 aggregate play-off defeat.
Green Brigade banners at Celtic Park condemned the board after the LASK collapse, citing repeated Champions League failures and missed qualification windfalls.
Celtic-linked full-back Will Ferry scored a curling screamer as Dundee United beat Kilmarnock 4-0, amid interest in cover for Kieran Tierney.
Everton are close to signing Kenny Tete from Fulham, a move that should end their interest in Celtic right-back Alistair Johnston after earlier links.
Celtic's Europa League schedule is confirmed, starting at home to Ferencvaros on 17 September and ending away to Union Saint-Gilloise on 28 January.
O'Neill said he was surprised by the warm reception from Celtic fans after the LASK collapse and praised his side's response in the 2-1 win over Falkirk.
Fontaines D.C.'s Grian Chatten wore Cwmbran Celtic's Mogwai-sponsored shirt at Reading, giving a lift to the Glasgow band with strong Celtic ties.
O'Neill hopes Callum McGregor will return against Aberdeen after illness, but is less certain on Kasper Hogh, who is being monitored during Celtic's busy run.