Italy, which hasn't won a Six Nations match since 2015, hosts France in Rome in the first match, then Wales takes on Ireland in the decider in Cardiff, and England hopes to still be in contention when it tries to regain the Calcutta Cup from Scotland in London.
Here's how the title can be won: Wales will win the Six Nations and achieve a first Grand Slam since 2012 if it beats Ireland. Wales will win the Six Nations if it draws with Ireland and England loses to Scotland.
England will be champion if Wales draws and it beats Scotland. England will be champion if Ireland beats Wales and it beats Scotland. Ireland will be champion if it beats Wales and England loses to Scotland.
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