Chelsea boss Frank Lampard has reportedly been left unconvinced by the development of Tammy Abraham.

Despite beginning the campaign in excellent form, the 22-year-old has recently found himself on the substitutes' bench.

While the academy graduate has netted 17 times this season, just three of those strikes have been recorded since the turn of the year.

According to Football Insider, his lack of productivity in the final third may lead to the Blues being prepared to sell the England international.

Although Abraham has a contract until 2023, it is suggested that Lampard may make a move for another high-profile striker during the summer transfer window.

Timo Werner has already been brought in to compete with Abraham and Olivier Giroud.