Morrisons is to step back into the FTSE 100, following a rise in its share price.

Just three months after leaving the top group of publicly-listed British companies, the supermarket chain is back, following a surge in the aftermath of announcing a supply deal with online retail giant Amazon.

Joining Morrisons in entering the FTSE 100 is Paddy Power Betfair, whileSports Direct is to leave the ranking when the changes are implemented on 21 March.

The list of 100 firms is redrawn every three months to reflect changes in companies' market values.

A rise or fall in the share price is multiplied by the number of shares in issue to assess a companies' market worth.

At the time of writing, the share price of Morrisons and its fellow publicly-traded supermarket rivals Tesco and Sainsbury's was as follows:

Share price 3 March 2016