"and was a key first team player as the "Owls" won promotion to the Championship at the end of the 2011–12 campaign." - try not to use nicknames for the teams
"before graduating through the Bristol Rovers-backed Bristol Academy of Sport at South Gloucestershire and Stroud College." - the part about Lines going to
South Gloucestershire and Stroud College needs to be verified with another source
"Lines joined League One club Sheffield Wednesday on a three-year contract for a £50,000 fee." - another source will be needed to go with the BBC Sport citation that mentions the contract was for three years since the former does not mention that fact
"He went on to score four goals in 47 appearances in the 2011–12 campaign as the "Owls" secured promotion with a second-place finish," - needs to be verified by a reliable source
"in midfield with Anthony Griffith; Griffith providing the tough-tackling and Lines providing the creative playmaking." - try not to begin the start of the following sentence like this
"He ended the 2017–18 season with five goals in 47 appearances as Rovers posted a 13th-place finish in League One." - needs to be verified by a reliable source
"Lines ended his second spell with his boyhood club having made 348 appearances, scoring 34 goals and having achieved three promotions during his two spells at the club." - not mentioned by the two sources placed at the end of this portion of text
Reference 57 "YOUR VIEW: Best player, best goal, best signing and more - Cobblers fans choose their award winners for 2019/20"" - no using all capital letters per
MOS:ALLCAPS
"and was a key first team player as the "Owls" won promotion to the Championship at the end of the 2011–12 campaign." - try not to use nicknames for the teams
"before graduating through the Bristol Rovers-backed Bristol Academy of Sport at South Gloucestershire and Stroud College." - the part about Lines going to
South Gloucestershire and Stroud College needs to be verified with another source
"Lines joined League One club Sheffield Wednesday on a three-year contract for a £50,000 fee." - another source will be needed to go with the BBC Sport citation that mentions the contract was for three years since the former does not mention that fact
"He went on to score four goals in 47 appearances in the 2011–12 campaign as the "Owls" secured promotion with a second-place finish," - needs to be verified by a reliable source
"in midfield with Anthony Griffith; Griffith providing the tough-tackling and Lines providing the creative playmaking." - try not to begin the start of the following sentence like this
"He ended the 2017–18 season with five goals in 47 appearances as Rovers posted a 13th-place finish in League One." - needs to be verified by a reliable source
"Lines ended his second spell with his boyhood club having made 348 appearances, scoring 34 goals and having achieved three promotions during his two spells at the club." - not mentioned by the two sources placed at the end of this portion of text
Reference 57 "YOUR VIEW: Best player, best goal, best signing and more - Cobblers fans choose their award winners for 2019/20"" - no using all capital letters per
MOS:ALLCAPS