Senegal finished as runners-up at the Nations Cup in 2019, while Guinea were beaten in the last 16
Senegal and Guinea moved closer to reaching the last 16 at the Africa Cup of Nations following a 0-0 draw.
The Guineans had the only real chance of the first half when Seny Dieng saved a low effort from Morgan Guilavogui.
Senegal grew into the Group B clash after the break as Abdou Diallo had a header tipped over and Bouna Sarr dragged a shot across goal and wide.
Both sides have four points after two games, which could see them progress as one of four best third-placed teams.
Senegal had needed a 97th-minute penalty to beat Zimbabwe in their opening game and Aliou Cisse's side, who are among the favourites for the title, put in another disjointed display in Bafoussam.
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Cisse was without four first-choice players because of coronavirus, with goalkeeper Edouard Mendy and captain Kalidou Koilibaly yet to feature in Cameroon and defender Fode Ballo-Toure and midfielder Idrissa Gana Gueye testing positive after Monday's win over Zimbabwe.
The Teranga Lions lacked cohesion in attack and were careless in possession in the opening 45 minutes and Guinea should have broken the deadlock with a counter-attack on the half-hour mark when captain Naby Keita found space on the right and centred for Ilaix Moriba.
The teenager took a touch before teeing up Guilavogui, who saw his low shot clawed away by Dieng before alert defending from Saliou Ciss scrambled the rebound behind.
Senegal, Nations Cup runners-up in Egypt in 2019, were brighter and more purposeful in the second half but influential Liverpool forward Sadio Mane struggled to make an impact and Sarr's set-piece delivery was inconsistent.
Yet the 24-team format means both Senegal and Guinea should reach the knockout stages, barring upsets against Malawi and Zimbabwe respectively in their final group matches on Tuesday (both 16:00 GMT).
- Line-upsMatch StatsLive Text
Line-upsSenegal
Formation 4-2-3-1
1Dieng21Mbaye4Cissé22Diallo2Ciss25Loum8Kouyaté20Sarr10Mané27Thiam9Dia
- 1Dieng21Mbaye4Cissé22Diallo2Ciss25Loum8KouyatéBooked at 75mins20SarrSubstituted forKeitaat 90'minutes10Mané27ThiamSubstituted forDialloat 74'minutes9DiaSubstituted forLopyat 81'minutes
Substitutes
- 6Mendy7Keita11Diallo13Lopy17Sarr19Diédhiou23Gomis24Name28Faty
Guinea
Formation 5-3-2
1Keita7Cissé5Sow13Camara4Conté3Sylla14Kourouma Kourouma6Diawara8Keïta11Bayo10Guilavogui
- 1KeitaBooked at 83mins7Cissé5Sow13Camara4Conté3SyllaBooked at 80mins14Kourouma KouroumaSubstituted forContéat 66'minutes6DiawaraBooked at 49minsSubstituted forKonatéat 78'minutes8KeïtaBooked at 64mins11Bayo10GuilavoguiSubstituted forSyllaat 90'minutes
Substitutes
- 2Sylla12Conté15Dyrestam17Kanté18Soumah19Kané21Kaba22Koné24Konaté25Diallo26Camara27Siby
Referee:Bamlak Tessema WeyesaMatch StatsHome TeamSenegalAway TeamGuineaPossessionHome49%Away51%ShotsHome10Away5Shots on TargetHome2Away1CornersHome7Away7FoulsHome14Away25Live TextPost update
Match ends, Senegal 0, Guinea 0.
90'+3'Full Time
Second Half ends, Senegal 0, Guinea 0.
90'+2'Post update
Ibrahima Sory Conté II (Guinea) wins a free kick in the defensive half.
90'+2'Post update
Foul by Sadio Mané (Senegal).
90'+1'Post update
Foul by Ibrahima Sory Conté I (Guinea).
90'+1'Post update
Mamadou Loum (Senegal) wins a free kick in the defensive half.
90'+1'Post update
Saïdou Sow (Guinea) wins a free kick in the defensive half.
90'+1'Post update
Foul by Keita Baldé (Senegal).
90'Substitution
Substitution, Senegal. Keita Baldé replaces Bouna Sarr.
90'Substitution
Substitution, Guinea. Morlaye Sylla replaces Morgan Guilavogui.
89'Post update
Attempt missed. Habib Diallo (Senegal) right footed shot from the right side of the box is too high following a set piece situation.
89'Post update
Foul by Ibrahima Cissé (Guinea).
89'Post update
Bouna Sarr (Senegal) wins a free kick on the left wing.
88'Post update
Attempt missed. Ibrahima Sory Conté I (Guinea) right footed shot from outside the box is high and wide to the right from a direct free kick.
87'Post update
Mohamed Bayo (Guinea) wins a free kick in the attacking half.
87'Post update
Foul by Saliou Ciss (Senegal).
85'Post update
Foul by Issiaga Sylla (Guinea).
85'Post update
Joseph Lopy (Senegal) wins a free kick in the defensive half.
83'Booking
Aly Keita (Guinea) is shown the yellow card.
82'Post update
Attempt missed. Bouna Sarr (Senegal) right footed shot from outside the box is too high from a direct free kick.
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Source: bbc.com