Swansea extended their unbeaten Coca-Cola Championship run to six games with a lacklustre goalless draw against Coventry.
The best chance of a disappointing first half fell to the hosts' Darren Pratley but his shot struck the post.
Nathan Dyer caused the visitors problems with his probing runs but missed a glaring opportunity on the stroke of half-time.
The second half failed to inspire and a lack of genuine chances was obvious at both ends.
Aron Gunnarsson had the best chance for Coventry while Swansea felt they had a good shout for a penalty turned down late on.
Paolo Sousa made four changes to his Swansea side following their 1-1 draw with Middlesbrough at the weekend. Angel Rangel, Jordi Lopez, Andrea Orlandi and Tom Butler all came into the side while new recruit Shefki Kuqi had to settle for a place on the bench.
Coventry boss Chris Coleman handed Carl Baker his full debut, with Leon Best and Gunnarsson also drafted into the side as Freddy Eastwood, Gary Deegan and Clinton Morrison missed out.
Both sides started cagily and chances were at a premium in the opening 10 minutes, with a Federico Bessone corner which was easily collected by Keiren Westwood the best moment of a slow start.
Swansea then had a double opportunity to open the scoring. Bessone's shot was blocked by a lunging Richard Wood and Pratley could only smash the ball against the upright from the rebound.
David Bell engineered a chance at the opposite end but his low drive went just the wrong side of Dorus De Vries' post.
Baker almost marked his first start with a goal when he headed Bell's delivery at goal but De Vries got down well to save.
Dyer came close to scoring on the stroke of half-time but, after he beat two men to get into the area, his effort flew wide.
Both sides made changes at half-time with Joe Allen replacing Lopez for the Swans and Leon Barnett coming on for James McPake.
Six minutes after the break Pratley made a strong break from the Swans midfield but his long-range effort failed to match the enthusiastic run and ballooned into the crowd.
Gunnarsson tried to make something happen for the visitors when he curled the ball round De Vries from outside the area but the ball spun wide of the post.
The Sky Blues were defending stoutly as Swansea started to press forward, with Wood making a number of interceptions as Orlandi and Butler both tried to play in Gorka Pintado.
The hosts were then denied a good penalty shout when substitute Deegan lunged in on debutant Kuqi but the referee signalled for a corner. From the resulting set-piece, the ball fell to Allen on the edge of the area and his fierce shot was well saved by Westwood.
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