[bbfan1991]

Becky McDonald will suspect that her arch-nemesis Tracy Barlow is poisoning daughter Amy in a forthcoming Coronation Street storyline, a report has claimed.

According to The Sun, Amy will fall ill in mysterious circumstances next month, which leads to Tracy and Steve spending more time together as doctors try to determine what could be wrong with their child.

Amid the worry over Amy's health, it is thought that Tracy (Kate Ford) starts to enjoy the new-found attention that Steve (Simon Gregson) is giving to the pair of them.

However, Becky (Katherine Kelly) apparently becomes convinced that there is a sinister explanation for Amy's illness, believing that Tracy is poisoning the youngster as part of a twisted plan to win Steve back.

A source told the newspaper: "Becky loves Amy and can't bear to see her suffering. She also can't bear seeing Steve and Tracy together. She is jealous and she quickly realises that Tracy is feeding off the attention Steve is giving them both."

Viewers will reportedly see Becky accuse Tracy after growing suspicious, branding her enemy a bad mother and bringing up some of the lowest moments from her troubled past to back up her claims.

"Becky can handle herself but Tracy is a dangerous enemy to make," the insider added. "If Steve believes Tracy over Becky, it could signal the end of their marriage."

However, whether there is an innocent explanation for Amy's illness or if Tracy really is poisoning the child has yet to be revealed.