Celtic sign Haissem Hassan on 4-year deal

Gabriel Slonina is a Chelsea goalkeeper linked with Celtic after Kasper Schmeichel's retirement, but his lack of recent senior action suggests he would not displace Sinisalo.
Celtic are set to face an SFA charge over pitch invasion disorder, while Rangers' hearing has been delayed.
Rangers have been warned Celtic's early five-point lead could prove decisive in the title race, with consistency and Old Firm games likely to shape the outcome.
Celtic face Hibs' stance on Miguel Chaiwa as transfer business gathers pace, with loan decisions on Penrice and Taylor also emerging.
Martin O'Neill said Celtic must master a 'number of systems', with Camilo Duran possibly playing out of position on the right despite impressing in the 5-1 win at Kilmarnock.
Haissem Hassan's arrival boosts Celtic's wing options and ambition, aiding Kasper Høgh but denting prospects for James Forrest and Michel-Ange Balikwisha.
Celtic plan four more signings after landing Haissem Hassan, with the winger explaining why he chose the Scottish champions.
Haissem Hassan says Celtic are 'the biggest club in Scotland' and vows dribbling, one-on-one play and enjoyment for fans after joining from Real Oviedo on a four-year deal.
Brentford rejected Celtic's attempt to re-sign Benjamin Arthur, who has instead joined Portsmouth on loan after an impressive spell in Glasgow last season.
Shaun Maloney praised Yang Hyun-jun's 'unbelievable work-rate', saying his all-round display and trust earned under Martin O'Neill can keep him central to Celtic's plans.
Celtic face an Alistair Johnston injury blow before the LASK play-off, with the right-back a major doubt after a niggle in the 5-1 win at Kilmarnock.
Celtic are reportedly close to a deal with Chelsea for Landon Emenalo, a move set to add competition for Kieran Tierney.
Shaun Maloney says Gavin Strachan and Greg Wallace deserve credit for Celtic's improved attacking work, with Maloney now taking on more forward coaching.
Celtic are expected to open talks with Hajduk Split for Niko Sigur, a versatile Canada midfielder-right-back, as they look to add steel and depth.
Celtic Fans Collective welcomed the club's spending, but said supporter pressure drove the shift and called for accountability, better governance and fan engagement.
Celtic confirm Haissem Hassan has joined on a four-year deal.
Mika Baur is nearing a £7m move to Celtic after impressing at Paderborn, with his rise driven by a sharpened passion to realise his dream.
Michael Stewart said Celtic should demand £20m-plus for Alistair Johnston, with no pressure on the club to sell the Canada full-back given his long contract and European pedigree.
Celtic have made an initial approach for Ermin Mahmic, with Slovan Liberec valuing the Bosnian at €7-8m. The 21-year-old is admired but not top of the Hoops' shortlist.