Nathaniel Clyne return to full training last week with the rest of the squad having missed all of the 2017-18 season so far due to a back issue.
Meanwhile, after also reaching full fitness, Danny Ings made his Champions League debut as a second-half substitute in the 5-0 win at FC Porto.
And Henderson has explained why both pieces of news have been well received by the rest of their teammates.
The captain wrote in ‘This is Anfield’: “Nathaniel Clyne is back training full-time with the group, after a season disrupted by injury until now. This is a massive boost for us because Clyney is international quality and will 100 per cent make us even more competitive between now and the season finishing.