Manchester City are weighing up a move for Liverpool defender Daniel Agger, [football] direct news understands.A source close to the Etihad Stadium told FDN backline reinforcements are the priority for the summer transfer window and the Reds centre-half has been earmarked as a possible addition to Manuel Pellegrini’s title-winning squad.The club insider revealed the Chilean is determined to increase his options despite finishing top of the table and lifting the League Cup in his first campaign in English football.Porto’s Eliaquim Mangala remains on the Blues’ radar but left-footed Agger would an alternative, like-for-like replacement for England international Joleon Lescott, who is leaving on a free transfer next month.The towering Dane was also wanted by City two years ago when then-manager Roberto Mancini pinpointed him as the man to partner captain Vincent Kompany at the heart of the defence, only to miss out on his signature.Agger could be tempted to leave after losing his place to Mamadou Sakho in the final weeks of last term.The 29-year-old had been a regular starter under boss Brendan Rodgers, partnering hardman Martin Skrtel, but France international Sakho, who arrived last year from French champions Paris Saint-Germain, ended the season ahead of him in the pecking order.