1. Mako Vunipola, Saracens
Saracens' win at Sixways this weekend served as a fine display of several stars' abilities, one of whom was British and Irish Lions star Mako Vunipola.
The 22-year-old's 14 tackles went a long way in restricting the Worcester hosts to scoring just eight points in front of a home crowd, and only one scrum feed lost in the encounter is far from a disappointing record away from home.
2. Kristian Dacey, Cardiff Blues
Kristian Dacey was once on the scoreboard for the Cardiff Blues this week, and although the well-finished run-in from just outside the 22' was part of a losing effort, the hooker held a good account of himself.
As agile as the Pro12 hookers come, the 24-year-old was once again in a very mobile move, winning all of his lineout throws in the process and succeeding in all of his tackle attempts.
Special mention to Saracens' Schalk Brits, who also had a busy day with ball in hand against Worcester.
3. Luc Ducalcon, Racing Metro
Toulon's loss in Paris this week came thanks to the rebellion of several Racing Metro performances, and Luc Ducalcon didn't disappoint.
The 29-year-old acquitted himself well against Emmanuel Felsina and played a big role in the hosts' forwards setting up a strong platform first and foremost, and the Racing backs capitalised as a result.
4. Tom Ryder, Glasgow Warriors
Glasgow Warriors' win against Edinburgh on Boxing Day solidified the former's position as Scotland's dominant party, thanks largely to the graft of Tom Ryder.
Alongside lock Tim Swinson, the Glasgow second-rowers were solid at the line-out, Ryder pulling off a gargantuan tally of 21 tackles in his 80-minute performance.
5. Christian Day, Northampton Saints
Christian Day isn't the most prolific of assets, so for the lock to notch two scores in the 43-25 beating of Bath was a special occasion.
Showing good positional awareness in the loose, the 30-year-old made several clean getaways of his own and also contributed six tackles to the cause, beating his second-row partner Courtney Lawes in most areas.